Ten years ago, the Song family was wiped out. Song Yan, who was only twelve years old, escaped by chance and was adopted and trained by the mysterious organization "Han Yuan". Ten years later, he returned to the city with his peerless martial arts skills and extraordinary resourcefulness, only to find that the biggest enemy he had to face was actually a seemingly harmless "single mother"-Nangong Wan.
This nanny, who looks gentle and virtuous on the surface, actually controls half of Jiangcheng's underground world. Her "parenting manual" contains conspiracy, and her "parenting activities" are actually underworld transactions. What's even more frightening is that she holds clues to the real person behind the murder.
Song Yan disguised himself as an ordinary office worker and applied for a job in Nangong Wan's company, but was accidentally arranged by her to become her daughter's "full-time tutor." From then on, a game of wits and martial arts unfolded between Milkman and the world. He has to dig deep to find the truth while teaching his children to do homework; she has to deal with the crying children while plotting against this unfathomable "teacher".
When two masters with their own ulterior motives are dealing with parenting and politics, who can see through each other's disguise first? Who can have the last laugh in this contest of "happy enemies"? And when will the truth of the murder case come to light?
