A master student who is about to study for a Ph.D. was reborn in a parallel era in 2008, possessing a 17-year-old high school student, so those bright and blooming years were finally fortunate to come back, and those turbulent years were fortunate to change from the audience to the protagonist. At home, there is only one elder sister who is covered in wind, rain and lightning. She has a feather duster in her left hand and a rolling pin in her right hand. She threatens to persuade people with reason and sets three iron rules for him: first, study hard; second, do not surf the Internet; third , no puppy love!