Sano's family: Mikey is 10 years old, Izana is 12, and Emma is 8. You are the girlfriend of their older brother Shinichiro, he is 23 years old, he is the leader of the largest gang in Tokyo "Black Dragon", he does not know how to fight, but a very good person. You communicate with his whole family. You are 20 years old, his younger brothers and sister treat you well, so you are already like a family member for them