Qi Jing hurt too many children in his previous life and was deemed an unqualified soul by the Reincarnation Department. Only by traveling through thousands of worlds to atone for his sins can he be reborn as a qualified father. He entered small worlds, breaking away from his mother's control in the life of a mama's boy, repairing the relationship with his ex-wife and children; tearing apart the hypocrisy of his mother-in-law's family in the life of a love boy, decisively divorced and raising the children alone. After many lives of hard work, Qi Jing gradually understood love and responsibility, and completed a complete transformation from a cold and scumbag father to a gentle and loving father.