Jin stumbles upon a mysterious Hitman System after a fateful incident turns his aimless existence upside down. Forced to navigate treacherous missions while evading law enforcement, he discovers an unexpected path forward. Yet as he progresses deeper into the system's demands, disturbing revelations emerge—his parents' deaths were no accident. Driven by a hunger for truth, Jin peels back layers of deception woven throughout his childhood and confronts the sinister forces that orchestrated his family's tragedy. In a world where danger lurks at every corner, he must balance survival with uncovering a conspiracy that could reshape everything he thought he knew.