Gō Koga

is a Bount, and the one closest to Jin Kariya.

Appearance
Koga has red hair cut short, with a spiky orange mohawk. He is a very large and muscular man, usually wearing a sleeveless shirt and large headphones around his neck. In his colonial years, his hair was even and shoulder length kept in a ponytail.

Personality
Despite his size, he is kind. When he took Cain in, he tried to protect the young man from his doll, but failed. Ever since, he refuses to hurt children, which is why he turned against Kariya. After realizing he was the only Bount left, he apologized for their harsh actions.

History
In the 1800s, while still going under the name Claude Gaugain, Koga was living in a countryside somewhere in Europe. One day Kariya, known at that time as Eugene Currier, payed him a visit and brought Cain with him. He asked Koga to take care of Cain and teach him how to live as a Bount. Koga initially refused, saying that Bounts should live on their own and train themselves. However, Kariya managed to convince him. Before leaving he gave Koga a book, which detailed doll summoning instructions. Initially Koga's relationship with Cain was rather rocky, but with time they developed a master-apprentice bond.

Some time later Koga bought Cain his own coat without asking. Cain was delighted with the gift, but some rude villagers tried to take it from him. They attacked Koga with no success, and retreated. A mob charged Koga's home soon after that and he released Dalk to fight them. Cain was impressed with Dalk and wanted a doll of his own. Koga gave him the book for summoning one, but told him not to try on his own. Cain disobeyed him though and before Koga could save him, his doll turned on him. Before turning to dust, Cain reached out to his master and told him he didn't want to die. Koga greatly suffered the loss of Cain and later joined Kariya's cause.

Bount arc (anime only)
Note: Events occurring in this arc are only in the anime and do not constitute canon material. Koga is first seen during a meeting of the Bounts called by Jin Kariya. He and the other Bounts listen to Kariya as Kariya states how he and the others all remember how badly they have been treated by the world. He also states that the time of them being persecuted and unlawfully attacked is over. Koga then implores Kariya to explain why he gathered them together. Kariya informs them that he has found a Quincy and wants their help in capturing that Quincy to finally gain absolute power and start a great era for the Bounts. Koga then later heads out to Yoshino and Uryū’s location.

As Uryū and Yoshino talk with each other, the lights suddenly go out and Koga breaks into the room. and tells Yoshino that she has to come back with him, but she refuses. Yoshino summons her Doll, Goethe, causing Koga to summon his own Doll, Dalk. Dalk attacks Uryū and Yoshino, forcing them out onto the roof. The Doll chases them up there, and she begins battling against Goethe. Uryū and Yoshino try to run for the stairs, but Koga gets in their way. Dalk then resumes attacking Goethe again, causing Goethe to run away. Dalk manages to injure Yoshino, causing her to call Goethe back. Koga tells his Doll to hurry up with the job, but Dalk tells him that he shouldn't hurry these things. She decides that she wants to enjoy this, but Koga tells her that she isn't to harm the Quincy. The Doll takes this wording as meaning that she can do whatever she wants with Yoshino but Uryū protects her before she can do anything. Yoshino tells Uryū that he shouldn't be protecting her but Uryū points out that he wasn't protecting her, but that he was deciding not to run away anymore. As a result, Dalk attacks him. Koga succeeds in taking the two to Kariya's mansion, having overpowered Yoshino and her Doll. Koga along with the other Bounts stand by Kariya’s side, as Kariya tries to convince Uryū to join them. When Uryū initially refuses, Kariya simply tells Uryū to take his time as they can wait forever for him to understand them. Uryū is then escorted by Koga and Dalk to a room. Koga warns Uryū to be cautious as Kariya is a kind but fearsome person.

Koga and the other Bounts then watch the battle between Ichigo and Utagawa conclude. They witness Utagawa’s death by Ichinose after he tried to convince Koga and the others to turn against Kariya.. At the remains of Kariya’s destroyed mansion, Kariya searches for some tool. Koga and Mabashi move to try to help, but Ichinose stops them and says that he will search for it. Kariya however, tells him that it is fine that he looks for the tool himself. Koga then converses with Kariya as he repairs a clock. Koga notes that the repair of the clock indicates that the stopped time moves again. Kariya responds that time has never moved for the Bount, even when its components were repaired. Koge states that the humans, who live with time, reject the Bounts and that they simply carry on with their existence. Ichinose adds that the Bounts have lived frozen in time and hated by the humans for many years, but now they will move that non-flowing time with their own hands to change their destinies. When Yoshino goes to confront Kariya, Koga and Ichinose stand by as Kariya battles Yoshino. Koga and Ichinose then step forward to stop Ichigo and Renji from interfering. Koga tells them that they will not allow them to take a step further as an important ritual is about to begin. Koga calls for Dalk when Renji attempts to attack with Zabimaru. While still fighting Renji, Koga watches Yoshino fight Kariya for a bit after Yoshino combined with Goethe. He notes that Yoshino may have lost her seal but she has not completely merged with her Doll, and wonders if this is her reproductive power. Koga and Ichinose pull back upon Kariya successfully creating the Bitto.

Deep underground in a cave where the Bounts had lost many comrades before, Koga and the others are assembled before Kariya as the Bount leader tells them that they are about to start the final stages of their plan. Kariya tells them that they do not need to fear Soul Society, despite the Shinigami having already moved against them. Kariya informs them that the ore in the cave shields all reiatsu and the Bitto will have plenty of this ore in them. He encourages them to take their time and let themselves be strengthened by this ore. Kariya then shows the Bounts the Bitto. He informs them that the Bitto absorb the souls of living humans and brings them down to the cave. They learn that the Bitto were created, thanks to technology engineered by Ugaki and himself. Koga remains silent throughout this, but is surprised to hear that using the Bitto will increase their power tenfold. Koga and the other Bounts are also mildly surprised when Mabashi refuses to use the Bitto. Koga tells Mabashi to stop when he looks to fight with Ugaki before Kariya intervenes. Later, Koga and the other Bounts drink the human souls absorbed by the Bitto. Koga and the other Bounts leave the cave, they converse a bit on Kariya. Koga asks them if there is anyone else worthy to be the Bount leader. Sawatari responds that he does not believe that Kariya will just let someone go if they go against him, and that he will follow Kariya. Ugaki agrees, stating that it is the best policy to follow Kariya even if they were secretly plotting against him. As the Bitto go around Karakura and absorb more human souls, the Bitto attempt to take Keigo Asano’s soul. Ichigo intervenes to protect his friend. Koga then suddenly attacks Ichigo. He introduces himself and Ichigo asks him what he did to Keigo. He states that he isn't going to explaining anything to him, and he summons his Doll. Koga tells Dalk that their investigation is over, as Dalk begins fighting Ichigo. Koga ends up having the advantage and on the verge of winning, but Ichigo's inner Hollow appeared and pushed Koga back. Koga recalls his time with another Bount, Cain. Koga then brings himself back to the situation at hand, and almost kills Ichigo, but Izuru Kira arrives. Izuru Kira proceeds to using his Zanpakutō's ability to bring Dalk to her knees. While this goes on, Koga directly fights with Ichigo. Upon seeing Dalk is defeated, Koga retreats.

At the Bount’s hideout, the Bounts inform Kariya of their failure to defeat the Humans and Shinigami. However, Kariya tells them that he doesn't care and that they at least got to test out their new-found power. Mabashi states that his power still isn't enough, but Koga tells him not to get greedy.

Some point later, Ichigo arrives at the Bount’s hideout and comes to the room populated by Kariya and the other Bounts. Ichigo accuses Kariya of abandoning his friends, but Kariya says that it wasn’t his plan. Their schedule merely got a little rushed. When Kariya mentions the Bount’s preparations to leave this world, Ichigo remembers how Kariya supposedly wants to connect the Hueco Mundo with this world and he concludes that they must be like Aizen. Kariya doesn’t reply and instead address the other Bounts, telling them to start the preparations. In response, Koga recites a chant and summons a Senkaimon. Koga briefly looks at Ichigo, and remarks that he should have killed him with his own hands back at Karakura Town. Koga and the others then watch Kariya fight Ichigo, with Koga advising Mabashi to watch the battle carefully as it is the true essence of a Bount who has gained power

Koga and the others soon leave for Soul Society, after Uryū enables their Senkaimon to function properly. Upon breaking through to Soul Society, he and Kariya arrive in Rukongai. There, they are confronted by Marechiyo Ōmaeda and his group of Shinigami as well as Tetsuzaemon Iba. Koga tells Kariya to let him handle the Shinigami and easily defeats them. Koga and Kariya then continue through Soul Society. He then helps Kariya and Maki Ichinose rally forces from the 79th District of Rukongai. At a gambling parlor, Kariya goes in and asks if he can join in on their card game, claiming that he's going to bet his life. This causes everyone to laugh at Kariya and they believe him to be an amateur. However, once they start playing the card game Kariya wins and this causes someone to claim that he's cheating. The man attacks Kariya with a knife but Kariya easily blocks the blow with his bare hand. Kariya mocks the man and then throws him into a wall. Kariya prepares to fight with someone else, but Koga suddenly enters the gambling place and stops the fight from happening. Kariya remarks that he thought he was going to have some fun and Koga calls in Ichinose to help him in stopping Kariya. The people in the gambling parlor suddenly go to fight all three of them, but they are easily stopped by them. Koga tells Kariya that there's going to be problems if he does not tone it down and that they'll be quickly discovered. Later, Kariya asks Tōba if they'll be able to gather some comrades. Tōba states that no one goes against what he says and that by tomorrow he'll have all the people he requested. Tōba then leaves and Koga apologizes to Kariya for having to stay in a place like this. Kariya tells him that he shouldn't apologize and that he's actually having fun. Kariya then asks Ichinose how he feels right now, but he doesn't answer due to being lost in his thoughts. Kariya tells Ichinose that something must be bothering him, but Koga points out that the same goes for Kariya. Kariya then states that someone interesting is coming towards them and he decides that he's going to take care of this one personally. Ichinose and Koga simply watch as Kariya leaves.

Some point later, Koga tries to convince a bunch of people to join Kariya's cause and attack Seireitei, but they are skeptic. Koga states that he has a plan, but they must agree to help him before he says what it is. Koga explains that Seireitei is really the runs in control and that there's no excuse for Kasjishi to be in the state it is in. Koga states that they have lived how the people in Kusajishi have lived and that they know how they feel. Koga tells the people that they should want to live a life of happiness and Koga states that Kariya will overturn Soul Society for them. Koga then asks if they'll help him and the other Bount and they agree, but Tōba asks for proof that he's serious about this. Koga asks Ichinose to unsheathe his Zanpakutō and to try and cut off his arm and Ichinose does so. Ichinose is able to make a deep cut to Koga's arm, but Koga immediately uses the spiritual particles in the air to heal himself. He states that they have nothing to worry about as he's invincible and that they'll overthrow Seireitei and make it the way it should be.

Koga then comes to Kariya’s rescue after Ran'Tao appears. Koga uses his doll to distract the group, and both Kariya and Koga escape. After returning to Rukongai, Koga asks Kariya how Byakuya was and he states that he was good. He adds that his fight with him will help promote their cause. Kariya then asks Ichinose where the other Bount are, and he states that they are currently observing Seireitei.

When the Bount's attack on Seireitei begins, Koga is goes to confront the gate guardian Jidanbō Ikkanzaka, summoning his Doll against him. He defeats the guardian, allowing for Kariya’s forces to open up the gate. As Koga and the other Bounts watch the Rukongai men open the gate, they see that several Shinigami arrive upon the attempt of Tōba’s subordinates to enter Seireitei. They move in front of the Rukongai people, with Kariya dispelling the Shingami. Kariya then tells the people of Kusajishi that they must part ways here, claiming that they were just pawns to him that were needed to open up the gates. This begins to anger the people of Kusajishi and they all charge towards Kariya, but he easily stops them by using the wind power from his Doll. Following this, Kariya, Koga and Sawatari continue on through Seireitei. They briefly see Ichigo and his friends reach the gate that Jidanbō was guarding. However, Kariya destroys the giant wooden siege machine that was holding the gate up, causing the gate to come crashing down. Koga is then instructed to go eliminate the Gotei 13 captains with Sawatari, while Mabashi and Yoshi create disturbances. As Kariya absorbs the Jōkaishō, Koga begins to wonder about his fellow Bount’s true motives. He walks with Kariya along an alley and confronts Kariya about the Jōkaishō. Koga states that he's going too far and that he should instead use his power to take control of the Shinigami, since revenge will be pointless if everyone is killed. However, Kariya points out that it will be fine if everyone dies and Koga begins to get angered. He states that he knew from the beginning that Kariya was an "uncontrollable sword" and that the Bount that were beaten down were drawn to Kariya's vigor, which is why he has continually stood by his side. However, if he decides to use the Jōkaishō, Koga states that he won't help him out anymore. He pushes Kariya into a nearby wall and tells Kariya to stop it since he's spitting at heaven. Kariya doesn't listen to him and injures Koga, who falls on the ground. Kariya tells Koga that he's taken care of him for a long time and that he's grateful to him. Kariya then walks away while Koga says Kariya's name.

Koga soon recovers from his injury and moves again. Upon being pursued by the 10th Division, he decides to come up with a plan to get out of the situation. He goes into one of the underground passages and talks with his Doll. Dalk complains that she wants to fight more, but Koga states that their top priority is to find Kariya. The Doll points out that Koga didn't refer to him as Kariya-san and she asks if the two of them are fighting. Koga states it is not as simple as that, but rather a difference in their lifestyles. Koga suddenly notices Shinigami chasing after him and after hiding, decides that he'll cut through them no matter what happens. He then sends his Doll up to fight against some of the Shinigami, and notices the Jigokuchō. As he evades the Shinigami, he notices that each group only has one Jigokuchō to communicate with their captain and lieutenant. He then has Dalk take out all of the Jigokuchō used by the 10th Division. After that, he has Dalk take out the Shinigami that were near him and retreats. He soon is confronted by Tōshirō Hitsugaya. The two battle, and Hitsugaya appears to have the upper hand, being that metal is vulnerable to ice. When Dalk falls, Koga goes up to his defeated Doll and he bids farewell to her. Hitsugaya remarks that this is different from the reports as he heard that if a Doll is killed then the Bount that is connected with that Doll dies as well. Koga explains that there are different roles for the Bount and that his role is to help out the youth. Hitsugaya tells him that this doesn't answer his question and Koga tells him that the answer is that his Doll simply isn't dead yet. Koga then has the broken pieces of his doll reform together in the shape of an axe and reveals that this is the core of his Doll. The two continue battle, but he still fails to beat the captain and loses at his hand. As the conflict with the Bounts end, Yoruichi Shihōin finds and saves him. She brings him to Ran’Tao. When he wakes up, he mistakes Ran’Tao for Yoshino but Yoruichi, who is also in the room, explains that she is Ran'Tao. Yoruichi states that she snuck Koga here and Koga asks why they saved him. Yoruichi states that she doesn't know why and Koga asks what happened to Kariya. He is informed that he was killed. Koga states that if the fate of the Bount is to die, then he should accept that fate, but Ran'Tao tells him to at least let his injuries heal. Ran'Tao then states that she has nothing more to do and that she'd just like to hear more about the Bount from the last of its race. Yoruichi states that she's going back to the Human World now and that she's going to leave the rest to Ukitake. Before she leaves though, Koga asks Yoruichi to thank Ichigo for him because he stopped Kariya.

Powers & Abilities
Enhanced Strength: Considering himself the absolute peek of Human physical might, Koga is a remarkably strong man. He was strong enough to pick up a metal girder and use it as a weapon with ease. He is also able to deal devastating blows to his opponents with minimal effort.

Keen Intellect: From his centuries of life, Koga is a highly intuitive. From a single glace at his opponent's eyes, he can deduce the nature of their thoughts.

Master Hand-to-Hand Combatant: With his centuries of experience, Koga has become a highly proficient battler, enough to effortlessly dispatch several Shinigami unarmed.

Doll
is Koga's doll. When sealed she takes the form of a small metal marble. The marble multiplies and expands into a large metal sphere with the Bount seal. When unsealed the metal sphere explodes into a multitude of small metal spheres floating in the air, these spheres form together into a semi-humanoid shape, with a flirtatious female personality. Dalk has trouble with cold-based attacks, which make it difficult for her to split her body apart as seen against Tōshirō Hitsugaya's Zanpakutō, Hyōrinmaru. As a heavy, metal-based creature, she is also vulnerable to Izuru Kira's Zanpakutō, Wabisuke, which doubles the weight of anything it cuts. In contrast, Dalk seems to be nearly invulnerable to heat.


 * Metallic Body Control: In this form she can control the metal that makes up her body, reforming it into any shape she wishes. She is able to split herself into tiny spheres no bigger than a ball bearing, making it very difficult to destroy her. She uses a variety of attacks in combat, firing pieces of her body as projectiles, and even turning her arms into machine guns to fire makeshift bullets through. She is also able to absorb metal that she comes into contact with increasing the amount of metal she has.


 * Spider Form: After Koga drank the Bitto's soul elixir, Dalk became even more spider-like, retaining only her humanoid torso. She also gained much more metal to work with. She became faster, heavier and harder. In this form along with her average abilities she also can create strong webs made of the metal from her body, with the sticky consistency of an actual spider web. She uses the ability to entrap the opponent and limit their movements.


 * Battle Axe: Dalk's core form is a large battle axe that Koga wields. Due to his own immense size, wielding a weapon this large is no problem for Koga.

Quotes

 * (To Ichigo Kurosaki about his inner Hollow) "A strong heart is needed in order to control a strong power. You lack that. As such, you can't control your power. By only gaining part of this power, you will destroy yourself in the not too distant future."
 * (To Ichigo Kurosaki) "It seems I'm destined to be stopped, seeing young people die. Watching a young people die in front of my eyes... is very depressing."
 * (To Ichigo Kurosaki) "This look is dangerous. Wanting power is dangerous."

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