Shen Yan, a modern social animal, is transformed into the ultimate villain in a Machiavellian novel - the powerful King of Zhenbei. In the book, he is ruthless, brings trouble to the government, and is eventually killed by the male protagonist. However, he does not know that he has a hidden 4-year-old son Shen Jingchen, the illegitimate son of the original owner and Bai Yueguang, who is secretly raised in another courtyard. Shen Yan doesn't want to make the same mistakes again and is determined to change his ways, but the cute little boy has his own "villain supervision system". As long as he has a bad intention, he will be complained about and punished by the cute baby.
