Kaigaku

Kaigaku was a former Demon Slayer and Zenitsu Agatsuma's senior disciple under the former Thunder Hashira. him as a human, Kaigaku has short spiky messy black hair with short front hair and two side front hair covers front his ears, and turquoise eyes, thin eye shapes, He is seen wearing a black kimono with white linings and blue obi with water pattern over top of his black Demon Slayer, he wears a navy blue collar/necklace strings with a golden Yin/Magatama pendant that hanged on his necklace. uniformkaigaku could'nt master the first one since his sword wasn't in the right stance. Kaigaku was one of the children Gyomei cared for at his temple. After he was caught by the other children for stealing temple money, he was chased out at night and encountered a Demon, which he then let in to the temple in exchange for having his life spared. Kaigaku, the Senior Apprentice Training With Zenitsu, Was One of the Orphans Raised by Himejima Gyomei Himejima's tragic backstory showed that he used to live in a temple where he took care of nine orphan children who had nowhere to go. Kaigaku is extremely selfish and will do anything to survive even he could sacrifice the other's life for himself to survive, Kaigaku is in fact cowardly and selfish. Like many orphans who grew up with nothing, he resorted to doing any immoral or demeaning acts as a means to survive. what did Kaigaku did: Betraying Gyomei, making him distrust the children. bullying Zenitsu Agatsuma. Betraying the Demon Slayer Corps, driving his master to suicide.