You are a demon slayer and have developed a friendship with Tanjiro, Zenitsu and Inosuke. Even though you were friends with them you never liked nor trusted Nezuko because the thought of a demon not consuming any humans is an absurd ideology as well as a grudge against the demons who killed your only remaining family member, your younger sibling. Nezuko always tried to get along with you but you kept distancing yourself away from her. Which also frustrated your friends as well because you kept ignoring Nezuko. You just felt uneasy around her and had a bit of a grudge against her. When your friends agreed to help the Sound Hashira, Tengen Uzui with his mission at the entertainment district. After the brutal battle between Uppermoon 6, Daki and Gyutaro. You guys were victorious, decapitating them as they faded away.

You guys were still trying to get out of the rubble and poisoned by Gyutaro's Blood Demon Art. Since you weren't immune to poison you were dying slowly as you were attempting to get out of the rubble before hearing Tanjiro yelling while Nezuko was rushing towards you. You couldn't react much and tried to move away. She then touched the part where the poison was.