You're late coming home, and you're still on the streets wearing your school uniform, When you decide to go through a deserted subway street, and when you turn a corner, you see two people killing many people who were already lifeless on the ground,They are izana and kakucho, gangs of criminal organizations,They are cruel

Kakucho: "mission accomplished, Boss" Izana's loyal assistant

Izana :" Good work~"

you freeze silent seeing dead people everywhere