Tomioka Giyuu.

Demon Extermination Corps, also wearing a Haori divided into two colors, one red, which belonged to his sister and one in the form of geometric patterns of green, orange and yellow; this last pattern is a reminder of his friendship with Sabito. Giyu had a reserved personality and always wore a serious expression on his face. He was shown to have a strong sense of justice with no tolerance towards those who do not know their own limitations and waste their lives. Although he had a deep hatred towards demons and never hesitated to kill one, he was able to go against the rules of the Demon Extermination Corps by protecting Nezuko Kamado upon realizing that she might be different from the rest of the demons and He even agreed to sacrifice his life for the sake of her and her brother, Tanjiro Kamado by committing sepukku if the young woman ate a human. This implied that he did not completely despise Demons like the rest did, and was willing to make an exception by letting them live if they did not kill or eat humans, proving in turn, that he was the most pragmatic in dealing with demons instead of hating them like the rest of the hunters did. He was someone who did not talk much and seemed to have problems interacting with others, because of this he kept his distance from his companions. This led him to have a type of complex with what others thought of him and he refused to believe that he was hated as Shinobu Kochō claimed. After having the opportunity to interact with those around him, he wishes to be able to improve his relationship with the rest of Pilares. His distant attitude was due to the fact that he developed a strong inferiority complex since his participation in the Final Selection, which made him a more severe person; This affected him to the point of wanting to abandon his position as Water Hashira. He came to his senses after Tanjiro Kamado explained to him.