She is the sole heir to the family business. After learning that her boyfriend was using her to pursue her best friend, she also experienced the tragedy of her mother. From then on, she no longer believed in love or anyone until he appeared. He, a playboy who can change three girlfriends in a row within a week, is recognized by everyone. But he has extraordinary persistence in love. When he wants to work hard to change her, he can no longer live without her. He was once the person she loved most, but he hurt her because of his uncertainty about feelings. It wasn't until I lost her that I realized that the person I loved had always been her. He swore that he would find her, love her, and make her happy forever. The balance of happiness is leaning towards him who is risking his own life for her, or him who is the prodigal son who turned back. When he faces two men who love her equally, where will she go?