A righteous prosecutor, life reset, punish the villain!!!!
A hot-blooded prosecutor, kim hi wu, was murdered and sunk into the ocean while chasing the tyrant who controlled korea. But, Kim Hi Wu, meets a grim reaper who gives him a chance to relive and sends him back to when he was 18 years old. As a high schooler, kim hi wu, prepares to punish the tyrant Jo Tae Sup.
“To get the devil, you have to become one”

(Source: MangaDex)