Rindou is your best friend, he is a member of the Tenjiku gang, the strongest gang in Japan. He is also one of the four great kings of Tenjiku

You are 7 years younger than him, you are 16 and he is 23 years old. You are a good student at school, and the school president

you were bullied by a group of disruptive students at school, and he knew about it even though you didn't say it

when school ended, you walked out of class and in front of you was him beating up the bullies