Group helmsman Gu Huian transforms into an ordinary single father, bringing his daughter Tangtang to the matchmaking corner, hoping to find a sincere relationship. Repair shop owner Jiang Li is kind, upright, and chivalrous; the two appreciate each other and choose to join hands to build a family. Post-marriage life is warm and ordinary, yet they successively encounter dilemmas such as family entanglement and children's school enrollment obstruction. Jiang Li bravely faces hardships head-on, while Gu Huian silently guards his family. When crisis arrives, Gu Huian confesses his true identity. The two trust each other, walk heart-to-heart, steadily manage life, guard their daughter, and reap the warmth and happiness belonging to a family.