In the world of American variety shows, a mysterious assassin quietly rises.

He possesses the pre-aiming frame prompt ability from the video game Sniper Elite, allowing him to be as precise as the Grim Reaper in every mission.

However, even such a top-tier assassin must face the most basic task—collecting debts from customers who refuse to pay.

[Solving Cases + Detective + High IQ Crime] Seven years undercover on the border, only to be reborn as a murderer? Touch the murder weapon and see the killer's method. Touch the door frame and see the closed-room method. Framed, but ultimately whitewashed. A year-long miscarriage of justice, solved in a day. Mysterious remote killing methods, terrifying home invasion murders. All solved by a student? Jiang Chen: "Officer, how about I teach you how to solve these cases?"