Lin Xiaolu majored in cultural relic restoration and worked part-time as a real estate agent to make a living. After renting a high-quality apartment at a low price, he met his next door neighbor Gu Beichen, who claimed to be an unemployed programmer.
They first met because of potato chips, and Gu Beichen bought a whole box of limited-edition potato chips to compensate the heroine. The two often crossed paths due to trivial matters such as forgetting to bring keys, water leakage on rainy nights, and taking care of illnesses, and their relationship gradually warmed up. Gu Beichen may seem ordinary, but he is an excellent cook and attentive and considerate. He cooks ginger cola for the heroine late at night, repairs light bulbs, and handles harassing customers. He silently solves her troubles and even gives her various valuables in the name of "company benefits."
The heroine gradually develops a liking for him as they get along, but discovers that Gu Beichen has many doubts: he is proficient in foreign languages, familiar with cultural relics, spends generously, owns valuable potted plants, and even the property owner treats him with respect. The heroine's best friend Su Nuannuan also reminded her many times that the hero's identity is not simple. Although the heroine had doubts, she chose to believe in the hero.
The heroine helps her neighbor restore antique vases with her cultural relic restoration skills, and accidentally finds the Gu family's ancient book "Gu Family Genealogy". Gu Beichen confesses his family background and admits that he stayed in the community to retrieve family cultural relics. The two confirmed their relationship, and the male protagonist publicly protected the female protagonist as her boyfriend, but his identity as the richest man was still not revealed.
In the end, Gu Beichen's identity as the world's richest man and president of the Gu Group is about to be revealed. He promises to confess all his secrets to the heroine when the time comes, and the two begin a sweet and suspenseful love life.