Modern woman He Qinyao, who transmigrated, moves to the capital with her father and encounters the handsome and unruly Duke of Rong, Chu Mingxi. Chu Mingxi falls for her at first sight and launches a passionate pursuit. Starting as bickering enemies, the two gradually develop mutual affection. Along the way, they encounter difficulties caused by noble ladies, misunderstandings from others, and family entanglements. Hand in hand, they resolve wave after wave of turbulence, and finally, with the blessing of the royal family and elders, they make a lifelong pact, weaving a sweet and lingering ancient romance story.