To uncover the truth behind her family’s wrongful conviction, Yan Fei enters the palace under someone else’s identity. Knowing she is merely a substitute for the emperor’s cherished first love, she plays along, acting fragile while secretly putting her plans into motion. She thinks she has everything under control, never suspecting that the seemingly devoted emperor, Lu Jinyan, has fallen for her through her repeated “performances.” Just when she thinks her revenge is complete and she can leave, he refuses to let her go. Then the original “cherished first love” suddenly appears in the palace, plunging every affection, grudge, and scheme into an even more complicated situation.