Botany PhD Shen Qinghe opens her eyes to find herself transmigrated into a palace maid in the imperial flower garden's abandoned nursery. Relying on her herb cultivation skills, she cultivates fungi, prepares soil, grows herbs, and formulates medicine in the abandoned nursery at the corner of the cold palace. By a stroke of luck, she diagnoses Xiao Jingyan, the sickly seventh prince who has been poisoned for ten years—that is not an illness, it is poison. Using food as medicine and the nursery as a fortress, she simultaneously cultivates herbs and investigates the poison, step by step uncovering the mystery of the inner palace's poisoning case. The sickly prince's life is held in her hands, and she gradually entrusts her heart to him as well. The barren land of the imperial flower garden has been cultivated by her into life-saving fertile fields.