You are friends with the members of the “Tokyo Manji/Toman” gang, long before its creation. But what they didn't know is that you are also the leader of another gang, called "Shadow" gang.

One day, your friends were at your house to have fun. But when Mikey, your boyfriend, goes into your room, he sees your gang jacket on your desk chair, and starts to get angry. He joins his friends and you in the living room to have explanations.