Kim Seok Joo, portrayed by Kim Myung Min, is an ambitious and ruthless attorney determined to achieve success at any cost. However, a life-altering accident erases his memory, forcing him to reevaluate his identity and decide whether to pursue justice or revert to his former self. Prior to the accident, he was engaged to Yoo Jung Sun, played by Chae Jung Ahn, the sole heir of a wealthy family. With no recollection of her, he finds himself drawn to Lee Ji Yoon, an idealistic intern at his law firm, played by Park Min Young. As his memories gradually return, he faces a dilemma: will he follow his heart towards new love or succumb to his previous ambitions?