All-around master of disguises Yan Ran leads her cute kid Qi Qi to live in seclusion in the countryside, where mother and son live and grow up in peace. By chance, Qi Qi learns that his biological father is Mo Yunpei, the head of Tianhuan Group, and sets off alone to the city to find his father and ask to be acknowledged. At first, Mo Yunpei thinks it is a misunderstanding, but in the process of slowly exploring the truth, he is struck by Yan Ran's outstanding abilities and unique temperament. The clever Qi Qi turns into a heartwarming little assistant, guiding the reserved Mo Yunpei to learn to express his affection, jointly interpreting a relaxed, interesting, and mutually rushing sweet romance story.