Liu Qinghe, the kitchen maid, woke up and became Pei Junning, the sick eldest wife of the Hou Mansion, burdened with the shackles of a substitute. Marquis Qi Sheng's ambiguous temptation, Daukou's fatal assassination, Xia Lian's mysterious death, and the shocking conspiracy of the soul-changing secret technique hidden under layers of fog. When she discovers that the original owner of the body is actually the Queen Mother's pawn, how will this identity game end? Is the substitute maid's counterattack a path to Nirvana and rebirth, or is she falling into a deeper abyss?