Modern assassin transmigrates into Hu Fei'er. Abused by her grandmother, Fei'er uses combat skills to separate from family. She awakens a spiritual spring space, earns silver selling herbs, starts a business, builds a house, and raises siblings. She saves Murong Jin; they develop romantic feelings. She punishes evil, helps neighbors, opens a medicinal market, and builds a stable life waiting for Murong Jin.