Trapped in an endless cycle of rewound time, a devoted noble learns he is nothing more than the "second male lead" in a predetermined story. No matter what he changes, the woman he loves always chooses the same man and meets a tragic end. After countless failed attempts including murder he devises one outrageous plan: seduce the male lead himself. As his shameless advances grow increasingly intimate, the line between manipulation, obsession, and genuine desire begins to blur in this mature fantasy romance.