Genryūsai Shigekuni Yamamoto

was the captain of the 1st Division in the Gotei 13 and also the Captain-Commander of the whole Gotei 13. His lieutenant was Chōjirō Sasakibe. After being cast into Hell, he has gained the epithet of.

Appearance
Yamamoto is a fair-skinned man of average height. The oldest captain in the Gotei 13, he has aged into a elderly man with a bald head, visible wrinkles, hooked nose, and pronounced cheekbones. He has red eyes, long eyebrows, long mustache, and a hip-length white beard secured by a purple band crossing down it. He has many scars on his body, with the two most prominent being a pair of long scars crossing above his right eye, one of which was left by his battle with his lieutenant. In addition to the standard Shinigami uniform, he wears a captain's long-sleeved haori draped over his back instead of actually wearing it, with its size being greatly exaggerated. Despite his old and frail demeanor, often standing in a hunch, he in fact has a very muscular and well-defined built, which he only reveals when serious for battle, something which Shunsui Kyōraku claims is not seen too often. After his confrontation with Sōsuke Aizen, Yamamoto lost his left arm.

When he was much younger, Yamamoto had black hair on the sides of his head, and was bald on top. He had a tuft of hair sticking up at the back of his head in a topknot. He had thick but more manageable eyebrows and mustache with no beard. He had a single large scar on his forehead, which earned him the nickname "Eijisai" due to its shape. He had a prominent crease on his forehead and beneath his eyes, and shallow cheeks. He wore the typical black outfit of a Shinigami, with the addition of a sleeveless captain's haori worn appropriately.

Personality
As the Captain-Commander of the Gotei 13, Yamamoto is highly respected by most of the Shinigami, most notably Sajin Komamura, who views Yamamoto as a benefactor who saved his life. The embodiment of conviction, Yamamoto follows the laws and regulations of Soul Society to the letter, and expects the same of others. He is not a man to tolerate insubordination, and is vocal with those who attempt to act in such a manner. He is quick to anger in the face of possible betrayal and can be quite aggressive in combat. He has a habit of referring to those he faces in battle as "youngster", and he refers to a battle as a "beating" or "punishment". When in a state of peace, he carries himself with an air of frailty, to the point where he fell asleep standing while awaiting Shunsui Kyōraku's arrival for a meeting. Due to years of experience, Yamamoto very rarely shows any sign of distress or surprise, usually responding by opening one or both of his eyes, which are partially closed slits for the majority of the time.

Yamamoto is very loyal to Soul Society, and takes his duties very seriously, expecting the same from the rest of the Gotei 13. His loyalty is so great, he is willing to sacrifice himself and the Gotei 13 in order to defeat Aizen, believing it to be their duty to lay down their lives for the sake of the Soul Society if necessary. Yamamoto becomes visibly angry when Shunsui, Byakuya Kuchiki, and Kenpachi Zaraki lose their haori and show little regret: to him, the haori represents their status as captains. Inversely, he prefers not to involve allies who are not part of the Gotei 13 (particularly humans), as he requested Ichigo Kurosaki to move to safety, and did not request for Orihime Inoue to repair the left arm he sacrificed for Ittō Kasō.

Despite his stern and steadfast personality, it is not to say he has no compassion and admiration, even for his enemies, as he was reluctant to strike down Wonderweiss Margela for his childish form and personality (only managing to get through this when Wonderweiss' Resurrección makes him no longer look like a child), and felt pity for him that Sōsuke Aizen stripped him of all his higher mental capacities except emotions (mainly fear of death). He commended the Tres Bestias for their bravery of attacking him with only one arm each, and struck them down without killing them. Yamamoto felt particularly furious when Driscoll Berci utilized his lieutenant Chōjirō Sasakibe's stolen Bankai, considering the inferior power to that of the original wielder as an insult to Chōjiro's memories and hard work; Yamamoto brutally burned Driscoll to cinders, showing his immense respect for a longtime friend and subordinate.

Yamamoto appreciates Eastern cultures, and is a master at the Japanese tea ceremony. He dislikes the Western traditions preferred by his lieutenant Chōjirō Sasakibe. Yamamoto holds a tea session every month in the 1st Division quarters for every member of his division. He plaits his own beard and arranges its ends once a month, and likes to be rubbed down with a dry towel while exposed to the sun on his balcony.

Yamamoto was apparently shameful of his past actions. He once referred to a painting of his past self as a monster that brought the Soul Society further turmoil when it was in a period of instability. Yhwach noted 1000 years ago, Yamamoto was a demon himself, using any necessary means to defeat his enemies, and treated Humans and his own subordinates alike as expendable pawns; it was only after defeating the Quincy and attaining peace did Yamamoto live with honor and justice that led him to hesitate in sacrificing people heedlessly.

History
{{Scroll-1| Around 2,100 years ago, Yamamoto was the "Genryū" Founder and "Genji School" Head Instructor. Yamamoto was himself a teacher at this academy, and personally instructed Shunsui Kyōraku and Jūshirō Ukitake. He admits to being rather proud of the two. When they became captains, he boasted about them as though they were his sons. During Yamamoto's time as an instructor, Chōjirō Sasakibe routinely visited him, always referring to him as "Eijisai-dono", a reference to the large scar on his forehead, despite knowing it annoyed him. He insisted it would be wrong to use Yamamoto's real name.

During one of his visits, Chōjirō told Yamamoto he wished to be his right arm and compensate for anything which Yamamoto could not do. When Yamamoto told him to become his disciple, he declined. At Yamamoto's behest, Chōjirō tried to defeat him with his Bankai. Though he failed to defeat him, he left a permanent scar on Yamamoto's forehead, crossing his earlier scar. Others began to refer to him by a different name due to the new scar, but Chōjirō refused to use this new name. As a result, Yamamoto decided to call himself Genryūsai.

Approximately 1,000 years ago, Yamamoto founded the Gotei 13, and also became the first Captain-Commander. During which, he sought out Yachiru Unohana, the most diabolical criminal of Soul Society and a master swordswoman, to join the group as one of the founding captains. Around the same time, he battled Yhwach alongside the original captains and Chōjirō, killing several of Yhwach's Quincy subordinates, including Zeidritz, Hubert, and Argola. Ultimately, he was able to defeat Yhwach, though he failed to kill him.

On various occasions, Yamamoto would catch the young Shunsui Kyōraku sneaking into his room. On one particular instance, he scolded the boy for doing so. When Shunsui asked about a painting of a dark silhouette within a field of fire, Yamamoto explained how the painting was of a monster which appeared in Soul Society a long time ago. He stated it had appeared at a time when Soul Society was facing a difficult situation, and the monster's appearance had made the situation worse. Yamamoto stated it was unlikely to return, but if it did, its return would mark Yamamoto's last day in Soul Society.

At some point, Yamamoto came across Sajin Komamura and gave him the opportunity to join the Gotei 13, despite him not being a Human soul.

Sometime shortly after Kenpachi Zaraki joined the Gotei 13, Yamamoto forced him to learn kendō because he had not learned any formal swordsmanship training, having bypassed those normally necessary qualifications due to the way he attained his position. Concerned by the devastation which Kenpachi could cause if he were to ever rebel after growing even stronger, Central 46 had Yamamoto stop the training after just one day.

Turn Back the Pendulum arc
Approximately 110 years ago, Yamamoto was noted as being the oldest captain among the Gotei 13, followed by Retsu Unohana, Shunsui, and Ukitake. It was stated the four of them had been captains of the Gotei 13 for at least 100 years at this point. Pushing Kisuke Urahara into the First Division headquarters so he could start the promotion ceremony, Yamamoto explained how seven days ago, there was an order to promote the 12th Division Captain Kirio Hikifune, which would leave her position open. Notifying the various captains of the opening, he asked them to submit nominations for the selection of a new captain. Within a short period of time, he got a recommendation from 2nd Division Captain Yoruichi Shihōin to promote her 3rd Seat, Kisuke Urahara. The following day, Yamamoto called Urahara in so he could take the Captain's Proficiency Test, administered by himself, 4th Division Captain Retsu Unohana and 6th Division Captain Ginrei Kuchiki, so they can confirm Urahara is qualified to be a captain. Having satisfied his three superiors, the three senior captains appointed Urahara the new captain of the 12th Division.

10 years later, Yamamoto called an emergency meeting of the captains of the Gotei 13, where he gave an intelligence report on the disappearances of 9th Division Captain Kensei Muguruma and Lieutenant Mashiro Kuna, who had previously been sent out to investigate the disappearance of other 9th Division members. As he stated he would choose 5 captains to form an investigation team, a very winded and frantic Urahara showed up to ask permission to go with the investigation team, for he had previously seen his lieutenant, Hiyori Sarugaki, go to the sight of the disappearances. Declining to grant this, Yamamoto, continuing with the meeting, selected 3rd Division Captain Rōjūrō Ōtoribashi, 5th Division Captain Shinji Hirako, and 7th Division Captain Love Aikawa. Telling them to head to the campground, he ordered Yoruichi to stand by, while the remaining captains present were to stay behind and guard the Seireitei.

Yamamoto ordered Unohana to prepare her relief stations for casualties. When Unohana insisted she should tend to the wounded at the site of the disappearances, Yamamoto stated he could not send healers without knowing the full extent of the situation. Upon the arrival of the captain of the Kidō Corps, Tessai Tsukabishi, and his lieutenant, Hachigen Ushōda, Yamamoto, asking Tessai if he had heard the news of the disappearances, told him he wanted the two of them to head to the campground as well. Interrupting, Shunsui asked if it was a good idea to send both the captain and lieutenant of the Kidō Corps when they had no idea what was going on. When Yamamoto asked what he would suggest, Shunsui told him they should send his lieutenant, Lisa Yadōmaru. With the squad formed, Yamamoto sent them out to investigate the disappearances.

After Isshin Shiba fought White, he reported back to Yamamoto. Pointing out how he had taken action without permission, Yamamoto stated his quick actions kept casualties low and damage to a minimum, and therefore he would not punish Isshin. As Isshin turned to leave, Yamamoto, suspecting Isshin was leaving out information, asked if there was something else worth mentioning, which Isshin denied. }}

Soul Society arc
Yamamoto is present during a meeting between captains over their fellow Captain Gin Ichimaru's failure to kill Ichigo Kurosaki. Upon arrival, Gin gets into an argument with 11th Division Captain Kenpachi Zaraki and 12th Division Captain Mayuri Kurotsuchi. Telling them to stand down, Yamamoto, asking Gin if he has been told why he has been summoned, details how Gin acted without permission and failed to capture or kill the target, which he feels is unusual for a captain, and asks for an explanation.

Stating he has nothing to say, which confuses Yamamoto, Gin says he has no excuse - he made a mistake, and will not try to justify his carelessness. As Yamamoto decides Gin will have to be punished, an intruder alert goes off. Shortly after Kenpachi leaves, Yamamoto dismisses the meeting, stating Gin's punishment will be handled later, and orders the captains to return to their defense stations. Later, following Renji's defeat, Yamamoto drops Gin's punishment and authorizes all Shinigami up to the captain-level to carry their Zanpakutō and use Bankai if necessary.

At Rukia Kuchiki's execution, Yamamoto asks her if she has any last words. When Rukia requests Ichigo and his friends be allowed to return to the Human World unharmed, Yamamoto grants her request, though in truth, he has no intention of allowing them to live. Upon the activation of the Sōkyoku, Yamamoto explains the Phoenix produced by it, called Kikōō, is the true form of the spearhead of the Sōkyoku and the executioner of the grand penalty, and after it pierces through the criminal's body, the grand penalty ends.

Yamamoto watches as Ichigo Kurosaki, appearing, saves Rukia by deflecting the Kikōō. He sends his lieutenant, Chōjirō Sasakibe, to stop Ichigo while he confronts Shunsui Kyōraku and Jūshirō Ukitake after they destroy the Sōkyoku. Ordering them to not move, Yamamoto states while the person who made off with Rukia was a replaceable lieutenant and is a matter which can be easily dealt with, he cannot forgive them for what they have done. As he notes the severity of their crimes as captain-rank Shinigami, they escape down the side of the cliff. After they move a considerable distance away, they stop, but Yamamoto, who is already there waiting for them, states it is not often he has to chase after young children. When Yamamoto exerts his Reiatsu, Nanao Ise collapses, forcing Shunsui to take her far away from the battle.

Upon Shunsui's return, he notes Shunsui and Ukitake's history, for they are like sons to him, and how powerful they are. He tells them it is too late for words, and to take out their swords. Dodging his attack, Shunsui and Ukitake draw their Zanpakutō. When Yamamoto asks if they intend on fighting him without releasing their Zanpakutō, Shunsui asks if there is any other way than fighting. Silencing him, Yamamoto states he has taught them there is no mercy for those who obstruct justice. When Shunsui states Yamamoto also said to follow through with your own sense of justice, Ukitake proclaims they have to protect justice with everything they have. Yamamoto dismisses the notion of individual justice, for it cannot override global justice. Tired of talking, Yamamoto removes his haori and top, telling them to prepare themselves for battle, and releases his Shikai.

Standing prepared for battle, Yamamoto, asking them what they are waiting for, tells them they should release their Zanpakutō unless they plan on burning to ashes without any resistance. As Shunsui and Ukitake release their Zanpakutō, Yamamoto notes they are the only dual Zanpakutō in Soul Society. Charging at each other, they create a large explosion of Reiryoku. After a while, the battle is forced to stop with Isane Kotetsu's announcement about the true intentions of Sōsuke Aizen, who is responsible for all of the chaos in Soul Society.

When Aizen's scheme is revealed, most of the remaining captains, closing in on his position, completely surround him. When the Menos Grande come to his, Gin, and Kaname Tōsen's rescue, Yamamoto warns the other Shinigami about the Negación technique the Menos Grande perform to rescue their fellow Hollows.

Arrancar arc
Yamamoto calls all of the captains for an emergency. Later, Yamamoto has a short video conversation with Tōshirō Hitsugaya over the Arrancar invasion of Karakura Town, and allows Momo Hinamori to speak with Hitsugaya. Once the conversation begins to revolve around Aizen and how Momo believes he is innocent, Yamamoto, cutting their conversation short by knocking Momo unconscious with a Kidō, notes it is too soon to let her speak.

After Orihime Inoue is kidnapped, Yamamoto, ordering Hitsugaya's task force to retreat to Soul Society in preparation for the war against Aizen, firmly disapproves of the idea of Ichigo and the others going to her rescue, seeing it as a suicide mission and believing that Orihime willingly betrayed them.

Hueco Mundo arc
Yamamoto, along with Byakuya and Ukitake, is told Rukia and Renji Abarai have disappeared, and the Second Division is looking for them all throughout the Seireitei.

After Coyote Starrk recaptures Orihime and takes her back to Aizen, it is explained Yamamoto ordered the creation of a replacement Karakura Town so the captains can fight at full strength without damaging the city. Later, he, alongside several other captains and lieutenants, waits as Aizen and his forces arrive in the Fake Karakura Town.

The Lost Substitute Shinigami arc
During a meeting with the captains in the 1st Division office, Urahara asks for help with restoring Ichigo's powers. Yamamoto tells Urahara to give him the special sword he would be using for this purpose, prompting Unohana to ask if he intends to help. He states they were saved by Ichigo, and it is now their turn to save him, regardless if the action is going against customs, for it would be shameful if they did not help somebody they owed so much to. He orders all the captains and lieutenants to place their Reiatsu into the sword.

Yamamoto orders Renji to bring back Kūgo Ginjō's body when he is dead. Later, a messenger reports to Yamamoto Ichigo has arrived in Soul Society. When Ichigo arrives at the First Division, he meets with Yamamoto and most of the other captains. Yamamoto starts to say Ichigo had fought an arduous battle, but Ichigo states he came to take back Kūgo's body so he can bury it. After Ichigo explains his reasons to Shinji, Yamamoto states he believes Ichigo thought carefully about it before making his request. He eventually approves his request, and Ichigo tells him to inform other Shinigami about his Substitute Shinigami license, for he will resume his former position.

Echoing Jaws of Hell arc
Twelve years after Yamamoto's death, the Gotei 13 captains performed the Konsō Reisai ceremony before his grave in Soul Society to allow the Reishi formerly comprising his body to return to the soil; unbeknownst to them, this ritual instead cast Yamamoto into Hell, where he gained the epithet of.

Powers & Abilities
Master Swordsman: As the founder of the Shin'ō Academy and a warrior with over two millennia of combat experience, Yamamoto is the most powerful swordsman in Soul Society. Few would hope to come out alive from a fight with him. Yamamoto fought two of the strongest captain-level Shinigami in history, Shunsui Kyōraku and Jūshirō Ukitake, simultaneously and emerged without any sign of injury. His skill in swordsmanship is great enough to take down his opponent with a single precise strike.


 * A precision cut of extreme force and speed which can slice through large, multi-story high opponents. The opponent is killed with one swift slash so precise, they are not even aware of it until after it has taken place.


 * Yamamoto takes his Zanpakutō in its sealed cane form and thrusts it at his opponent, punching a large hole in their body. This technique was effective against a multiple story-high opponent like Ayon.

Hakuda Master: Even without his Zanpakutō, Yamamoto remains a highly skilled and dangerous combatant and has proven himself to wield similar mastery of hand-to-hand-combat as with his swordsmanship. He effortlessly caught a strike from the deceptively fast Ayon. Yamamoto can deliver powerful blows which can smash through Espada-level Hierro, and block the majority of multiple punches from a multi-armed opponent.


 * A powerful punch used by Yamamoto against Wonderweiss. Using this technique, Yamamoto destroyed much of Wonderweiss' abdomen and sent him flying along a city street and into a building, destroying it.


 * Stronger than Ikkotsu, it is a powerful two-fisted punch used by Yamamoto against Wonderweiss. The attack can completely destroy an opponent with a single blow.

Kidō Master: Yamamoto's knowledge of Kidō is so great, he can perform them without calling out their names while retaining their great potential power, whereas most users require a name to do so, if not a full incantation. He can produce immensely powerful barriers to protect him from all but the strongest of attacks, and is able to cast '''Hadō #96. Ittō Kasō''' without incantation to great effect.

Shunpo Master: Yamamoto is highly skilled and experienced in the art of Shunpo, outracing Shunsui Kyōraku and Jūshirō Ukitake during a chase across the Seireitei. He overtook both captains, and arrived at their destination first without even being noticed by them.

Master Strategist & Tactician: With his millennia of experience as a teacher and warrior, along with being the commander of the entire Gotei 13, Yamamoto is a very intelligent man. He can quickly adjust to new developments and make quick decisions accordingly. He has great tactical acumen, proven by his preparations for the battle in the Fake Karakura Town. As noted by Aizen, Yamamoto is very cunning, setting up a trap to kill him while Aizen was focused on the Visored and the rest of the Gotei 13. He is a very perceptive man, easily deducing Captain Mayuri Kurotsuchi was hiding knowledge on the Bounts. His skill at battle tactics is undeniable: as captain-commander, he commonly sends the captains and divisions out to engage in battle, be it to relatively small or large threats, and has done so for a number of centuries.

Immeasurable Spiritual Power: Being the most experienced Shinigami, Yamamoto possesses an extremely massive and powerful Reiryoku. Its sheer strength is powerful enough to effortlessly break free from four overlapping and high-level Bakudō spells restraining him. He has served as the Captain-Commander of the Gotei 13 for over 1,000 years because there has not been a Shinigami stronger than him in all this time. Even Aizen openly acknowledges Yamamoto's power as being so superior that if he were to fight directly against it, it would overpower him. Even after losing his left arm, he was still recognized as irreplaceable as Captain-Commander. Against three Sternritter, elite Quincy with above Captain-level might, Yamamoto was able to swiftly repel them. Likewise, he previously defeated the Quincy Emperor, and even years later when diminished in power by old age and only a single arm, Yhwach opted to instead trick Yamamoto to exhaust himself before directly facing Yamamoto.


 * Masterful Reiatsu Control: Yamamoto can exert his Reiatsu to induce fear in captain-level combatants, and can physically paralyze and possibly even choke combatants of lieutenant-level and lower simply by gazing in their direction. Yamamoto's spiritual pressure has the same effect as his Zanpakutō, for it is the elemental representative of fire. He tends to glow with a fiery aura, which has the potential to burn and set his surroundings on fire without the use of his Zanpakutō. It is the formidable pressure of his Reiatsu which makes the Reiatsu itself look like flames. When Yamamoto is enraged, his Reiatsu is powerful enough to be felt all around Seireitei with tremendous force.

Immense Strength: In addition to his surprisingly muscular physique for his age, Yamamoto possesses tremendous physical strength. He easily and swiftly put a large hole into the chest of the monster Ayon without much effort at all, using only the blunt end of his cane. With a single hand, he stopped one of Ayon's strikes and overpowered it, despite it having enlarged its arm and increased its strength several folds. With one punch, he put a large hole through the chest of Wonderweiss Margela while he was in Resurrección and sent him flying back several city blocks. He tore off Wonderweiss' arms, with his bare hands, with little to no effort. With a single double-fisted strike, he shattered Wonderweiss' entire body into pieces.

Immense Durability: Yamamoto possesses remarkable durability. He took an onslaught of punches from Wonderweiss' multiple arms twice, and came out completely unfazed by the assault, with no more than simple scratches. He sustained an explosion of flames which had the power to incinerate all of Karakura Town and a great area around it. In his younger years, he challenged Chōjirō to defeat him with his newly-achieved Bankai, and in the end only suffered a light scar on his forehead. 2000 years later, he would take on a barrage of powerful lightning strikes from Chōjirō's fully-mastered Bankai and only be singed by its power, though he stated it became weaker from Driscoll Berci's usage. He can easily deflect a giant Heilig Pfeil from a Sternritter with one hand without any noticeable damage done to his being.

Immense Endurance: Despite his old age, Yamamoto can fight for extended periods of time, even when outnumbered, with no visible signs of exhaustion. He can take direct attacks from others unfazed. He can endure being impaled on a sword without so much as flinching from the perceived damage, even when the blow is dealt by the likes of Aizen, a powerful opponent. Even after being bifurcated by Yhwach, Yamamoto survived and managed to grab onto his cloak.

Zanpakutō
For the manifested spirit that appears in the anime-only Zanpakutō Unknown Tales arc see Ryūjin Jakka (Zanpakutō spirit).


 * Yamamoto's Zanpakutō is the oldest and most powerful fire-type Zanpakutō, and has greater offensive power than all other Zanpakutō in Soul Society. In its sealed form, Ryūjin Jakka usually takes the appearance of a wooden staff, which can be used like a spear. At any time, Yamamoto can remove this disguise by peeling off the wood, revealing its true form of a standard katana, with a dark purple handle, a circular hand guard, and a red sheath. After Yamamoto was killed, Ryūjin Jakka, now scorched and shattered, was returned to the 1st Division barracks.


 * Shikai: Its Shikai command is . The release of his Zanpakutō comes with an extreme release of Reiatsu, affecting all in the area, and can be felt for miles upon miles across all of the Seireitei.


 * Shikai Special Ability: When released, the blade of Ryūjin Jakka is engulfed in fire. The aura of this weapon incinerates everything and anything which Yamamoto waves the sword at, changing it into nothing more than ash, and engulfs the surrounding landscape in a blazing firestorm, the heat of which is intense enough to scorch the sky and consume the clouds. Only powerful fighters such as Shunsui and Ukitake can resist it, but even then only indirectly. Even in its Shikai, Ryūjin Jakka is powerful enough to fight against the Shikai of two other captains simultaneously, both of whom had the reputation of being the strongest captains in Soul Society while together. Unlike most other Zanpakutō, resealing Ryūjin Jakka does not deactivate any ability already used against an opponent, proven when Yamamoto imprisons Sōsuke Aizen, Gin Ichimaru, and Kaname Tōsen.


 * This technique creates an immense wall of flame, which surrounds the target and forms a huge contained sphere of flame in which to imprison enemies. It is immensely powerful, imprisoning three captain-level Shinigami (namely Aizen, Gin, and Tōsen) for a significant amount of time.


 * This technique allows Yamamoto to create a great inferno with a simple wave of Ryūjin Jakka. The fire generated by the attack completely consumes whatever is caught within it until only ashes remain. The flames created by Ryūjin Jakka can be controlled, with great precision, by Yamamoto to attack only the targets he chooses, and he has power over the intensity of the flames.


 * Creates seven or more immense pillars of flame which surround an area. The intent of this technique is to trap the opponent in the caged inferno and destroy them. The power of this technique can destroy everyone caught in its vicinity, including Yamamoto himself. These flames can incinerate an area much greater than Karakura Town's.


 * Bankai: : In its Bankai, the blade takes the form of an ancient and worn-out katana, severely scorched by fire.


 * Bankai Special Ability: Upon activation, any flames previously produced by Ryūjin Jakka are instantly absorbed into the blade. Zanka no Tachi incorporates the full power of Yamamoto's flames into the blade: the flames within the blade burn anything it cuts out of existence. Zanka no Tachi has the side-effect of generating a heat-wave that depletes the moisture in an entire area (at least the size of the Seireitei), causing the air and the water to dry up. Even Tōshirō Hitsugaya's Bankai, Daiguren Hyōrinmaru, cannot be used, for its ice melts due to the intense heat of Zanka no Tachi. No flames are visible as it cuts. Yamamoto claims releasing his Bankai clads both his blade and his body in the flames of the Sun. Retsu Unohana believes that the flames of Zanka no Tachi could incinerate the entirety of Soul Society if left active for too long.


 * Automatically activated at release, this ability concentrates the intense flames of the sword along the tip of the blade. It neither burns nor erupts, but anything it touches is eradicated to nothingness. Even the defensive power of the Wandenreich's Blut Vene cannot stand up against this technique.


 * Automatically activated at release, this ability is unseen by the eyes of anyone else unless Yamamoto wills it to be seen. It engulfs his body in heat which reaches a temperature upwards of 15,000,000 degrees. Therefore, it becomes impossible to even touch him while he is using his Bankai. The level of heat produced by this technique is so high, it would not actually appear in the form of flames.


 * Impaling the tip of his sword into the ground, Yamamoto calls upon the corpses and ashes of the dead who were killed by his flames to come forth and fight on his behalf. They emerge from a rupture in the ground which comes with enough force to decimate Kirchenlied: Sankt Zwinger. Using the heat of his sword on their ashes, he can rouse all the people he has killed, allowing the corpses to become his limbs and attack whomever he deems as his enemy until they become dust. He can bring forth any specific corpse that he wishes, allowing him to inflict psychological damage upon those with connections to those he has slain.


 * A slash of concentrated fire and heat which incinerates whatever it touches out of existence.

Zanpakutō
Wonderweiss Margela (Formerly): Wonderweiss is the only modified Arrancar in existence, having been designed for the sole purpose of nullifying the powers of Ryūjin Jakka. Upon his Resurrección, Wonderweiss prevents the blade from creating any new flames, while sealing the already created flames into is own body. Should Wonderweiss be killed, the flames would burst with explosive force.

Collateral Damage (Bankai): Because of the extremely intense heat which emanates from both Yamamoto's blade and body, he can only wield Zanka no Tachi for a short amount of time, and prolonged use of it will eventually destroy his opponent, Soul Society, and even himself.

Appearances in Other Media

 * Yamamoto is a playable character in most of the Bleach video games. He fights with his Shikai, and has a variety of attacks.
 * He uses Jōkaku Enjō as a Special and Nadegiri in Soul Carnival 2.
 * In Bleach: The Blade of Fate and Bleach: Dark Souls, Yamamoto can use various techniques:
 * Summons fire that trails along the ground, damaging the enemy on contact.
 * Summons rising flames in front of Yamamoto that damage the enemy on contact.
 * Summons twirling flames that surround Yamamoto.
 * Summons flames that fire in an arc forward.
 * Yamamoto charges forward while covered in flames.
 * Fires a large blast of flames forward. This is one of Yamamoto's two super moves. It is named after the Ama no Murakumo no Tsurugi, otherwise known as the "Kusanagi no Tsurugi", one of the Three Imperial Regalia of Japan.
 * Emits a wad of fire that rises into the sky, which splits into flame balls that rain down around his vicinity. This is one of Yamamoto's two super moves, and the highest-costing one at 3 bars of Reiatsu.
 * In the sound tests, he also has an unused attack by the name of Yamata-no-Kusanagi via voice clips still left in the games, another reference to the aforementioned Ama-no-Murakumo.


 * In Bleach: The 3rd Phantom, Yamamoto's strongest attack is the aforementioned Yazuhomura no Orochi. He shoots a giant pillar of fire upwards, which falls on the foe and the surrounding area. It also creates a flaming area which burns the opponents. Additionally, he can use offensive spells, such as Shakkahō and Sōkatsui.
 * He appears in all four movies, but plays very little role in them.
 * Yamamoto is playable in both Shikai and Bankai forms in Bleach: Brave Souls. His Bankai form appears for the first time as an exclusive playable character for the Thousand-Years Blood War arc gacha tie-in; due to the passing of the previous VA, this Yamamoto is voiced by Binbin Takaoka. In this form, Yamamoto is a melee strong attack character with the "Speed" Attribute and the "Hollow Killer" ability who has a chance to inflict Burn with every attack. His unlockable skills are "Bruiser +20%", "Debilitator +2 secs.", "Devastation +40%", "Fire Duration -100%", "Freeze Duration -100%", "Frenzy +1", and "Sprinter +1", while his Soul Trait is "Strong Attack Recharge Time -12%"; meanwhile, his Arena Traits are "Strong Attack Damage +13%" and "Focus +30", while his Arena Abilities other than "All Stats +5%" are "Strong Attack Damage +10%" at level 5 and "Strong Attack Damage +20%" at level 10. Yamamoto's special is, where he uses his sword's flames to control the undead, inflicting immense damage and Burn.
 * Yamamoto is also playable in an alternate form of his Bankai where he primarily uses Zanka no Tachi, Nishi: Zanjitsu Gokui and Zanka no Tachi, Kita: Tenchi Kaijin rather than the South and East techniques of Zanka no Tachi. In this version, Yamamoto is a "Technique" Attribute melee strong attack character with the "No Affiliation Killer" ability; he is also the first character to come with "Innate Abilities", similar to Awakening Skills but built-in to the 5* variant of the character, and his are "Immolator", "Read No Affiliation Dodges", and "Fire Immunity 100%". All of his attacks also have a chance to inflict Burn, and he can unlock "Berserker (+20%)", "Bruiser (+20%)", "Damage to Burning Enemies +20%", "Debilitator (+2 secs.)", "Devastation (+40%)", "Frenzy +1", "Havoc (+20%)", and "Sprinter (+1)", while his Soul Trait is "Strong Attack Recharge Time -12%"; meanwhile, his Arena Traits are "Strong Attack Damage +13%" and "Focus +30", while his Arena Abilities other than "All Stats +5%" are "Strong Attack Damage +10%" at level 5 and "Strong Attack Damage +20%" at level 10. His special is, where he focuses all his flames into the tip of his sword and attacks, inflicting immense damage and Burn.


 * A third version of Yamamoto as part of Thousand-Year Blood War arc was released on July 31, 2022. This is called Thousand-Year Blood War: The Fire version wherein Yamamoto is again in Bankai mode but now uses all of his Bankai techniques as a "Power" attribute character with the "Quincy Killer" and "Hollow Killer" abilities. His normal attack and first strong attack is, his second strong attack is , and his third strong attack is . All of his attacks also have a chance to inflict Burn and Weaken. Yamamoto's unlockable skills include "Berserker +40%", "Bombardment +1", "Damage to Burning Enemies +40%", "Damage to Weakened Enemies +40%", "Debilitator +5 secs.", "Frenzy +1", "Marauder", "Shared Complete Status Immunity +100%", "Status Ailment Spiritual Pressure Boost +80%", and "Weaken Defense", while his Soul Trait is "Strong Attack Recharge Time -12%"; meanwhile, his Arena Traits are "Strong Attack Damage +13%" and "Spiritual Pressure +90", while his Arena Abilities other than "All Stats +5%" are "Poise" at level 5 and "Strong Attack Damage +30%" at level 10. Yamamoto's special is Like an Inferno, where he initiates Zanka no Tachi, Higashi: Kyokujitsujin and  simultaneously, inflicting immense damage, Burn, and Weaken to his enemies.
 * Additionally, Yamamoto is playable in a form drawing from his fight against Wonderweiss Margela, where his Zanpakutō was sealed and he opted to use Hakuda instead. In this form, Yamamoto is a melee character with the "Technique" Attribute and the "Arrancar Killer" ability whose second and third Strong Attacks have a chance to inflict Burn. His unlockable skills are "Adrenaline +15%", "Bruiser +30%", "Debilitator +5 secs.", "Frenzy", "Long Reach +20%", and "Sprinter +1", while his Soul Trait is "Fire Duration -65%"; when Resurrected, his unlockable skills are "Adrenaline +15%", "Bruiser +30%", "Debilitator +5 secs.", "Devastation +40%", "Frenzy", "Long Reach +20%", and "Sprinter +1",while his Soul Traits are "Fire Duration -65%" and "Weaken Duration -55%". Yamamoto's special is, where he performs a two-handed strike of incredible power that inflicts immense damage and Paralysis.


 * Yamamoto is also playable as an alternate-universe version of himself introduced as part of the Bleach: Spirits Are Forever With You tie-in event who gained a power beyond Bankai, allowing him to produce the flames of Ryūjin Jakka from his own body and scorching his fists while causing his many scars to glow with internal fire. In this form, Yamamoto is a melee normal attack character with the "Heart" Attribute and the "Sternritter Killer" ability who has a chance to inflict both Burn and Weaken with every attack. He has three Innate Abilities built in at ★5: "Drain Duration -100%", "Weaken Duration -100%", and "Sprinter +1". His unlockable skills are "Berserker +50%", "Brave Battle Temporary Invincibility +10 secs.", "Bruiser +20%", "Debilitator +5 secs.", "Flurry", "Ignore Brave Battle Invincibility +1", "Last-Ditch Survival 100%", "Poise", and "Prevent Brave Battle Healing", while his Soul Trait is "Damage Taken -16%"; meanwhile, his Arena Traits are "Normal Attack Damage +13%" and "Attack +90", while his Arena Abilities other than "All Stats +5%" are "Damage To Burning Enemies +20%" at level 5 and "Normal Attack Damage +30%" at level 10. Yamamoto's special is, where he unleashes a flaming, double-fisted strike of awesome power that inflicts immense damage, Burn, and Weaken.

Censorship

 * When Nanao Ise was affected by Yamamoto's Reiatsu, she teared up and was foaming from the mouth. In the anime however, the tears and foam were all omitted.

Trivia

 * "Imperturbable and like an unmovable pivot." - Tite Kubo
 * The theme song that Kubo chose for Yamamoto is "Mars, the Bringer of War", the first movement of The Planets by composer Gustav Holst.
 * In its first appearance, Ryūjin Jakka was approximately as long as Yamamoto was tall, resembling a nodachi. He was also significantly lankier.
 * Yamamoto was voted the 24th most popular Shinigami character in the fifth character popularity poll after never reaching any position on the four previous polls.
 * Ryūjin Jakka ranked 32nd in the first Zanpakutō poll and 13th in the second.
 * In the second best bout poll, Yamamoto's fight with Shunsui Kyōraku and Jūshirō Ukitake ranked 19th, his fight with Yhwach ranked 29th, his fights with Sōsuke Aizen and Driscoll Berci both ranked 41st, his fight with Royd Lloyd ranked 47th, his fight with Ayon ranked 60th, and his fights with Wonderweiss Margela and Äs Nödt both ranked 77th.
 * Though Shigekuni is his first name (meaning "heavy/important country"), Yamamoto is generally known by his title of "Genryūsai" (meaning something like "Original willow's purity"), which he adopted approximately 2000 years ago.
 * Yamamoto was the author of Got a minute? in the Seireitei Communication.
 * The Shinigami Women's Association published a Photo Collection of Captain Yamamoto named Skeleton, which was scrapped.

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