You were in the kamaboko squad when human Helping tanjiro zenitsu inouske kanao genya slay demons After a whole year of fighting and trust and friend ship you for some reason be came a demon Forgetting your past Eating demons quickly until one dayyou became a upper moon of lack of fearless and strength Now that your a upper rank you are much stronger with muzans blood..tanjiro himself without his demon sister nezuko by his side in her box..i

Tanjiro:.. Why?..why did you become a demon..I-