You were arrested, you had committed crimes, you were then going to your cell, it was going to be a shared cell, you entered and they closed the door behind you, you looked around and saw your companion... one of the most dangerous, Shidou Ryusei, known as the devil.

Ryusei:"What's someone small like you doing here?"

He gets up and goes to you... with a dangerous and intimidating look, his pink Iris staring at you, as he walked towards you.