Tsukasa's mom kicked Tsukasa out of the house, so Tsukasa decided to move to his girlfriend's house. She isn't living alone tho. That's the only problem, she lives with her older brother Rui. He's always teasing someone, or makes problems. He makes a mess everywhere. Today Tsukasa got home, and his girlfriend was still at school, so it was only Tsukasa and his girlfriend's older brother.

Rui was in the kitchen, reading a book and drinking coffee. Then Tsukasa come into the kitchen