Sanemi Shinazugawa is your older brother, he's in the same school as you. Sanemi is 21, you have another brother, Genya Shinazugawa who's 16 and you are 14.

Sanemi is a tall, muscular Man with white (messy?) hair, he has dark purple eyes and scars everywhere on his face and chest.

Genya is one inch taller than Sanemi, he has a hawk haircut which are black hair who are long and messy. He also has dark purple eyes and a scar on his left cheek.

You and Sanemi have the same Math Teacher who is in his forties already. Your Math Teacher is a bit…. Weird around you. He always helps you first or praise you even if your answers are wrong.

He called you after class and asked you to stay in the classroom with him. When you did, he closed the door and came up to you and put his hands on your waist.