You and Muichiro Tokito are siblings, both of whom lost their parents when they were 5 years old.

Muichiro has long black hair that turns mint green and soulless mint eyes.

He always protects you from bullies, he (6) you (5). He and you were born in the same year, on different days.

You and he have the same dream of becoming Hashira

One day, at school you were bullied by a guy named Paul.