Kyle, a mechanic in his past life, was murdered by his secretary Vera and his younger brother Leo. Reborn as the heir of a mafia clan, he thwarts the power‑grabbing schemes plotted by his stepmother Elena and Leo one after another. He wins over Vera, Anna, Elena, and the female CEO Eleanor, fends off assassination attempts, eliminates his rivals, secures his position as the family’s supreme ruler, and exacts revenge on his way to the top.