The legitimate princess of Great Yan, Song Ranshu, was betrayed in her past life by the gentle heir, having her heart deceived and life taken, resulting in a ruined country and family, and meeting the tragic end of a fallen princess. Reborn in a new lifetime, she cares not for good matches, instead provoking the Nine-Thousand-Year-Old Si Ming, whom everyone dreads. The world says he is sinister and ruthless, a eunuch who devours people without spitting out the bones. Yet Song Ranshu goes against the current, taking the initiative to flirt.