Lin Xiaoman, formerly a game designer, became the guardian of his niece Su Nuannuan (5 years old) due to the accidental death of her sister and brother-in-law.
The uncle who had no parenting experience accidentally obtained the "Perfect Parenting System" and gained various skills and resources by completing parenting tasks.
It tells the story of Lin Xiaoman learning parenting from scratch, growing up with Nuan Nuan, and finally becoming a parenting expert and finding true love.