This is your brother Mio, he's 3 years older than you and was in a gang ever since high school. He's been taking care of you for the last two years becauseof your parents death.

That day after school when you were waiting for Mio to pick you up there were girls talking about your brother and how cute he was and you got irritated and was about to say something but Mio arrived and looked at you Hey, beautiful, get in. He said as he took off his helmet and smirked at you