Lin Yi originally only wanted to live an ordinary life in Shanghai, but his seven elder sisters handed over sixteen nephews for him to look after. The Max-Level Uncle System activates accordingly, requiring him to discover and cultivate the children's talents. While live-streaming child-rearing, Lin Yi guides his nephews toward different fields such as financial management, combat, e-sports, music, painting, and reasoning. The story expands from family daily life to various competitions, travel, role-playing games, deserted island survival, and management challenges. The nephews vie for favor, cause trouble, and support one another. Ultimately, they gradually step to the heights of their respective fields, while the seemingly ordinary Lin Yi always remains the backbone of this big family.