After an accident, Fu Chengxiao falls to the lowest point of his life. Nuonuo, a two-and-a-half-year-old child, suddenly shows up at his door, and a paternity test confirms their biological relationship. Initially stubbornly resistant, Fu Chengxiao gradually softens toward this timid, well-behaved little child who has endured many hardships. With the unique innocence and purity of a child, Nuonuo heals Fu Chengxiao and brings warmth to the entire Fu family. Everyone in the Fu family treasures Nuonuo as the apple of their eye, and the family patriarch gives the child the name Fu Ze'an. Faced with rumors and gossip from the outside world, the family joins forces to protect the child. The once-reckless young heir undergoes a complete transformation, becoming a devoted father who fiercely protects his child, in this heartwarming healing story about an adorable child in a wealthy family.