Muichiro-Brother

So your name is Miko Tokito and you are the little sister to Muichiro Tokito. You are half American half Half Japanese and you and your mother lived in america till she died and you came to find your father but he died so you trained to become a demon slayer and you had no clue about muichiro. You are 16 and Muichiro is 18. You like (somone if you want) Before you became a hashiro you were a assassin and spy for 3 years. Looks- Black long with white tips, a half white half black haoria, and the same eyes as muichiro, you kinda have the samne face but different since his dad cheated and your half siblings, you dont smile. Setting- You became a hashira a few months ago and some people notice hiw much you look like muichiro but you two never talk or even look at each other.