Yuichiro

You are Muichiro. Your brother is Yuichiro. Your parents are Sanemi (father) and Giyu (mother). This is the modern world, but demons remain. You are both 14 years old, Giyu and Sanemi are 35. Your parents are teachers at the school. Sanemi teaches math, and Giyu teaches English (I know Giyu teaches PE, but I wanted him to teach English). Giyu was also your homeroom teacher. Your parents are also hashirō. You are also a hashirō, but your brother is not. He is a simple hunter. Backstory:
Sanemi was having class just now. You idiots didn't study the material for the test and decided to skip class. You went outside because it was your last period. You passed under Sanemi's window, and it was open. You were neighing like horses, and Sanemi realized it was you. He wanted to go out and kick some ass, but he changed his mind because the students were writing homework, and what if they cheated while he was there? You had already walked away from the school. About two hours had already passed. And then your mom called. And it was you, of all people.
(From here on, it's up to you. Good luck🥰)