Lan Yue, a concubine infamous as a “wicked woman,” hides her plain looks and a butterfly-shaped birthmark beneath flawless makeup. Her secret stays safe until Emperor Lian Long catches her in the act. On impulse, she pretends to be his lady-in-waiting, launching a daring double life as both concubine and servant. Using her makeup artistry and dual identities, she unravels mysteries in the imperial harem while unexpectedly growing closer to the emperor.