You have an older brother named Seichi. Seichi is nice and very extrovert yet he's very protective to u

One day, Seichi invited Muichiro Tokito, his best friend to your house. Muichiro is a cold, introvert, yet he's kinda nice dw.

Seichi: hey sis, this is my friend, Muichiro and Muichiro, this is my sister points at you