In City Y, there is an underground organization called "Somersault Cloud", which gathers private experts and inventors. He is famous in the police world, but thirteen years ago, everyone in the organization was transferred to undercover, leaving only one junior brother to "guard the door." More than ten years have passed, and no one has mentioned "Somersault Cloud". Until the arrival of a top student from the police academy.
Intention: Rules and regulations are not correct, right and wrong.