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Sentarō Kotsubaki (小椿 仙太郎, Kotsubaki Sentarō) is the Lieutenant of the Thirteenth Division of the Gotei 13 currently under Rukia Kuchiki, and formerly under Jūshirō Ukitake. He used to share the position of 3rd Seat with Kiyone Kotetsu.


Sentarō has dark hair and a short goatee. He wears a customized version of the standard Shinigami shihakushō, wearing a thin white headband and white straps around his shoulders, which are tied in a circle at his back.


Sentarō, like Kiyone Kotetsu, holds his captain in high regard and tries to impress him in any way possible. Both he and Kiyone frequently get in arguments and fights over their competition to impress their captain. Despite this, he was willing to save Kotetsu after she was wounded, showing he does not hate her.

He often speaks in a very loud voice or shouts.


Shortly after Rukia Kuchiki joined the 13th Division, a drunken Kiyone and Sentarō eavesdropped on a conversation between her and Kaien Shiba. They applauded Kaien on his words before he asked if they were drunk again. Sentarō told Rukia that he is from Rukongai as well and people talked behind his back about him. Kaien then ordered them back to their posts.[3] Some time after Miyako Shiba's death, Sentarō and Kiyone became the 13th Division's 3rd Seat officers. When Rukia was informed that she was being sent on a mission to the Human World, Kiyone reassured her that she was not being transferred, reminding her of a previous mission to the Human World. When Rukia did not remember this, Sentarō insulted Kiyone. Kiyone and Sentarō then listened as Ukitake talked to Rukia about letting Byakuya know about her mission.[4]


Soul Society arc[]


Kiyone argues with Sentarō as he reassures Rukia.

After Ichigo, Ganju, and Hanatarō's attempt to rescue Rukia is foiled, Ukitake calls for Sentarō and Kiyone. The pair appear and Ukitake asks why they followed him there when he told them not to come as it was too dangerous. Sentarō comments that it was scary and says that because he respects Ukitake so much, he cannot help following him. Kiyone is annoyed by this, calling it a cheap shot and says that she respects Ukitake more. The pair argue until Ukitake tells Kiyone to contact the Fourth Division so that Ganju's injuries can be treated. The captain tells Sentarō to carry the unconscious Rukia back inside the prison. Sentarō orders Hanatarō to move aside, but he refuses. Sentarō angrily asks if he thinks that he wants to put Rukia in prison and takes Rukia inside, telling her that he is sorry and that he and Ukitake will get her out of prison. Kiyone hears this and complains, saying that she is more concerned about Rukia and that she and Ukitake will get her out. As the two squabble again, Sentarō tells her to contact the Fourth Division, but she insists that she was on her way there anyway.[5]


Kiyone covers her ears as Sentarō loudly reads a report.

Later, Sentarō very loudly reads Captain Retsu Unohana a message from Ukitake which asks for clemency in punishing Hanatarō. They listen as Unohana points out that because of his help, the Ryoka did more damage than they would have done alone.[6]

On the morning of Rukia's execution, Sentarō notices the beginning of the release of the Sōkyoku. He states that this is bad and asks Kiyone if the captain is ready. She tells him not to yell for no reason, before yelling for Ukitake. Sentarō criticizes her for shouting, but she ignores him and informs the captain of the news. Ukitake emerges from behind a door, stating that it took him longer than anticipated to remove the seal from the Shihōin Shield. He then tells them that since the Central 46 ruled against stopping Rukia's execution, they have to destroy the Sōkyoku. They pair acknowledge his order.[7] The three of them rush towards the Sōkyoku Hill.[8] They arrive as the Sōkyoku is preparing to make a second attempt at killing Rukia.[9] They witness Ichigo Kurosaki destroy the Sōgyoku's scaffold.[10]


Suì-Fēng defeats Sentarō.

In spite of Sentarō's warning not to, Kiyone tries to go to her injured sister's side. Sentarō' is knocked aside as Suì-Fēng moves to stop Kiyone.[11] After Suì-Fēng is dragged away from them, Unohana ferries Sentarō and the other injured individuals inside Minazuki to the 4th Division to be treated.[12] While Sentarō's and Kiyone are recovering, they both receives Isane Kotetsu's message elaborating on Aizen's betrayal.[13]

Bount Arc (anime only)[]

Note: Events occurring in this arc are only in the anime and do not constitute canon material.

Click "show" to read the plot arc. 

Sentarō and Kiyone head out.

Sentarō is present when Ukitake announces to the members of the Division that all communication between Soul Society and the Human World is to be stopped temporarily and that the Senkaimon is to be closed.[14] In the SRDI, Ukitake summons Sentarō and tells him that the survey is complete. He instructs Sentarō to report this news to the necessary people and Sentarō leaves.[15] When the Bount invade Soul Society, Sentarō and Kiyone lead a group of Shinigami to Rukongai's 43rd District to aid Rukia.[16]

Kiyone and Sentarō hear via Hell Butterfly about that Bount's objective is a number of devices called Jōkaishō. They are told that the Hell Butterflies will aid them in searching for the devices.[17] Acting on Ukitake's order, Sentarō breaks open a floor to reveal one of the Jōkaishō. Kiyone and Sentarō then begin sealing it up.[18]

Arrancar arc[]


Kiyone and Sentarō argue over who brought Orihime to see Ukitake.

Sentarō, Kiyone, and Orihime Inoue eavesdrop as Rukia requests that Captain Ukitake open the training grounds so that she and Orihime may train for the coming war. When Ukitake notices Orihime, Sentarō grabs her and presents her to the captain, claiming to have brought her to meet him. Kiyone angrily shouts that she in fact was the one who brought Orihime. Sentarō then offers Ukitake another cup of tea, but Kiyone stops him, stating that they agreed to do rock-paper-scissors to determine who would bring the tea. Sentarō replies that he who makes the first move wins. The pair fall silent as Orihime talks to Ukitake and Rukia.[19]

The New Captain Shusūke Amagai arc (anime only)[]

Note: Events occurring in this arc are only in the anime and do not constitute canon material.

Click "show" to read the plot arc. 

Ukitake tells Sentarō and Kiyone of his suspicions.

Sentarō asks Ukitake if the supposed Menos Grande Invasion of Seireitei was a ruse. Kiyone asks how this is possible and Ukitake states that the only information they have is the announcements they have been receiving and that there have not been any sightings of Menos. He suggests that somebody is toying with them. Kiyone and Sentarō both praise Ukitake and immediately squabble over who is copying who. As Ukitake wonders who could manipulate them, Captain-Commander Yamamoto appears and reveals that he is responsible. Sentarō and Kiyone kneel before him.[20]

As the Gotei 13 hunts for Captain Amagai, Sentarō and Kiyone lead a group of troops through Seireitei.[21] Sentarō informs Ukitake that they have completed preparations to begin the search, but he tells them to wait a little longer. Sentarō listens as Kiyone points out that they have received several orders to head out. Ukitake states that he knows this, but they are interrupted by the arrival of Yoruichi.[22] Kiyone and Sentarō accompany Ukitake on the raid of the Bakkōtō manufacturing facility.[23]

Fake Karakura Town arc[]


Sentarō and Ukitake eavesdrop on Yamamoto scolding the captains.

After Aizen is captured, Sentarō, Kiyone and Ukitake eavesdrop on Yamamoto scolding Shunsui, Byakuya and Kenpachi for losing their respective captain haori. Ukitake notes that 10 days have past since the battle, Yamamoto has lost his left arm, but it looks like his stamina has returned, which is a relief as Soul Society still has yet to see a being capable of replacing the man.[24]

Zanpakutō Unknown Tales arc (anime only)[]

Note: Events occurring in this arc are only in the anime and do not constitute canon material.

Click "show" to read the plot arc. 

When the captains, lieutenants, and other top members of the Gotei 13 are summoned to the Sōkyoku Hill by Yamamoto, Sentarō and Kiyone talk with Rukia and Mayuri Kurotsuchi as they wait. Kiyone and Sentarō leap in front of Ukitake and Captain Tōshirō Hitsugaya when Muramasa appears before them, ready to draw their swords. They then look on as Captain Sajin Komamura confronts Muramasa with his Bankai, only to be attacked by it himself and cut down by Tenken. They continue to watch as the other captains and lieutenants try and fail to release their Zanpakutō and subsequently listen as Muramasa explains that he has freed the spirits of the Zanpakutō, who then appear alongside him.[25] The following day, Sentarō and Kiyone silently kneel behind Ukitake as he discusses the situation with Unohana, Yoruichi, and Shunsui Kyōraku.[26]

Beast Swords arc (anime only)[]

Note: Events occurring in this arc are only in the anime and do not constitute canon material.

Click "show" to read the plot arc. 

Kiyone and Sentarō are among the Shinigami and Zanpakutō Spirits that surround Zabimaru and Senbonzakura when they wreck the S.R.D.I. building, causing equipment to malfunction across Seireitei.[27] During a celebration in Soul Society, Kiyone and Sentarō wrestle.[28]

Gotei 13 Invading Army arc (anime only)[]

Note: Events occurring in this arc are only in the anime and do not constitute canon material.

Click "show" to read the plot arc. 

When Ichigo arrives in Soul Society, Sentarō assists in his arrest, along with other senior Shinigami.[29]

The Lost Substitute Shinigami arc[]

Sentarō informs Ukitake that Ichigo has defeated Kūgo Ginjō and that Ichigo is okay.[30]

The Thousand-Year Blood War arc[]

Sentarō and Kiyone notice the giant pillars of blue flame caused by the Wandenreich incursion. As Sentarō notes that each of the pillars has a great spiritual density, Rukia passes them by. They ask where she is going and Rukia tells them that the enemy is likely at the base of the pillars. After she leaves, Sentarō and Kiyone glance at each other and then head out. He and Kiyone are among the Gotei 13 officers who move out to deal with the Wandenreich[31]


Sentarō and Kiyone watch the Seireitei transform.

During the Wandenreich's second assault, Sentarō and Kiyone witness the transformation of the Seireitei from within the forest outside of the city's borders. Alerted by the sudden change, both assistants run to a nearby shrine to inform Ukitake about the attack.[32]

The next day, Kiyone and Sentarō follow Ukitake to Kisuke Urahara's laboratory, where they congratulate him on his successful treatment of the wounded 11th Division members. When Sentarō notes Ukitake is the best at healing despite being sick not being something to be proud of, Kiyone angrily berates him for phrasing it this way.[33]

Later, after Ukitake completes the Kamikake and Yhwach manages to absorb Mimihagi, Sentarō and Kiyone see Ukitake collapse as Mimihagi is forcibly drawn out of him and rush over to him in concern.[34]

Sentarō reaches Wahrwelt with the large group of Shinigami survivors. They promptly begin making their way through the city but are being watched by Lille Barro and he soon begins to shoot the stragglers.[35]

Echoing Jaws of Hell arc[]

NBFHIchigo and lieutenants gather

Sentarō and the other lieutenants gather in the Human World.

On the day of Ukitake's Konsō Reisai, after being informed by 12th Division Captain Mayuri Kurotsuchi that the lieutenants are to assemble in the Human World and perform the Jogimen Reibaku ceremony, Sentarō gathers with the other lieutenants and Ichigo in the Human World, where they are attacked by several Jigoku no Gaki and Sentarō rushes to Kiyone's side in concern after she is impaled by one of them. When Marechiyo points out how they are supposed to be capturing a living Hollow, Sentarō declares that they can worry about this later.[36]

Powers & Abilities[]

High Spiritual Power: Being a lieutenant of the Gotei 13, Sentarō boasts high levels of Reiryoku.

Shunpo: Sentarō has enough skill in Shunpo to appear immediately when summoned to not keep his captain waiting.[37]


Appearances in Other Media[]

Video Game Appearances
Blade Battlers
Blade Battlers 2nd
The Blade of Fate
Dark Souls
The 3rd Phantom
Flame Bringer
Tasogare ni Mamieru Shinigami
Shattered Blade
Versus Crusade
Heat the Soul
Heat the Soul 2
Heat the Soul 3
Heat the Soul 4
Heat the Soul 5
Heat the Soul 6
Heat the Soul 7
Soul Carnival
Soul Carnival 2
Hanatareshi Yabou
Bleach Advance: Kurenai ni Somaru Soul Society
Erabareshi Tamashii
Soul Resurrección
J-Stars Victory Vs
Brave Souls
Paradise Lost
Jump Force
Rebirth of Souls
Movie Appearances
Memories of Nobody
The DiamondDust Rebellion
Fade to Black
The Hell Verse
Live-Action Film


  • (To Jūshirō Ukitake) "I'm very, very sorry, but I respect my captain too much and I couldn't help, but follow my captain anywhere he goes."[37]


  1. 1.0 1.1 1.2 Bleach Official Character Book Souls, page 150
  2. Bleach: No Breathes From Hell
  3. Bleach manga; Chapter 134, pages 13
  4. Bleach manga; Chapter 0.side B - the rotator, pages 1-4
  5. Bleach manga; Chapter 119, pages 6-9
  6. Bleach manga; Chapter 128, pages 1-2
  7. Bleach manga; Chapter 149, pages 6-9
  8. Bleach manga; Chapter 150, page 18
  9. Bleach manga; Chapter 151, page 11
  10. Bleach manga; Chapter 152, page 1
  11. Bleach manga; Chapter 153, pages 10-11
  12. Bleach manga; Chapter 154, pages 3-4
  13. Bleach manga; Chapter 172, pages 8-10
  14. Bleach anime; Episode 67
  15. Bleach anime; Episode 68
  16. Bleach anime; Episode 93
  17. Bleach anime; Episode 107
  18. Bleach anime; Episode 108
  19. Bleach anime; Episode 138
  20. Bleach anime; Episode 179
  21. Bleach anime; Episode 183
  22. Bleach anime; Episode 185
  23. Bleach anime; Episode 186
  24. Bleach manga; Chapter 423, page 6
  25. Bleach anime; Episode 230
  26. Bleach anime; Episode 231
  27. Bleach anime; Episode 263
  28. Bleach anime; Episode 264
  29. Bleach anime; Episode 317
  30. Bleach manga; Chapter 479, pages 4-5
  31. Bleach manga; Chapter 494, pages 6-7, 18
  32. Bleach manga; Chapter 547, page 7
  33. Bleach manga; Chapter 613, page 5
  34. Bleach manga; Chapter 621, pages 1-2
  35. Bleach manga; Chapter 635, page 11
  36. Bleach manga; NO BREATHES FROM HELL, pages 30, 38-39, & 41
  37. 37.0 37.1 Bleach manga; Chapter 119, page 7


Preceded by
Miyako Shiba
3rd Seat of the 13th Division
? - Present
Succeeded by