In the first episode, Michelle Ye finally took a fancy to a house, and the rent of 8,000 yuan was converted into 4,000 yuan by her. But she didn't expect that the real owner was Li Zena, and Mao Tianyu, who showed her the house, was just an errand boy.
The play tells the story of Li Zenan, a "black belly party" with strong ability and high IQ. Because of an accident, he and Michelle Ye, the "energetic Party B" who was not afraid of "A" for the first time in the workplace, became neighbors. In the constant exchange of tricks, the two people with a height difference of 20cm are gradually attracted to each other, and the sweet hilarious story from A to B is spread to their lovers.