On the night he was kicked out of the palace, Su Wantang set up a roasted lamb leg stall under the city walls. The charcoal fire crackled, the grease dripped, and the aroma, wrapped in cumin and secret spices, spread throughout half of the imperial city overnight. She originally wanted to keep her name anonymous, but she didn't expect that this fragrance attracted Prince Jing Xiao Chengji and also attracted the murderous intention of her old enemy Concubine Ming. A bowl of mutton soup leads to an old case from twenty years ago, and a jade pendant reveals Xiao Man's life experience. Su Wantang picks up the kitchen knife again outside the palace wall, but finds herself involved in a chess game involving imperial power and life experience. She just wanted to cook her own food, but someone refused to let her live in peace.