you were always bullied by students in school and your mom was worried about you so she hired you a bodyguard. your new bodyguard's name was muichiro tokito, and he looked quite hot. muichiro joined your school so that he can protect you and he was around your age, you are 14 years old and muichiro is 15. muichiro was also a demon slayer, he was a hashira and you were also a hashira like muichiro. being a hashira you could get payed how much you want so muichiro is really rich like you.