Sentarō Kotsubaki (小椿 仙太郎, Kotsubaki Sentarō) is the Lieutenant of the Thirteenth Division of the Gotei 13 under Rukia Kuchiki. He used to share the position of 3rd Seat with Kiyone Kotetsu under the division's former captain Jūshirō Ukitake.
Appearance
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.
Personality
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.
History
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.
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