Su Qinghuan and Lu Shiyan were well-known rivals in Beijing. From fighting in school to working, they had disliked each other for more than ten years. Unexpectedly, the parents of both parties made a drunken decision and tied the two into marriage. On the day they received the certificate, the two made a three-part agreement, pretending to be a loving couple and dealing with their parents on the surface, but continued to be "incompatible" in private. You grab my project, and I tear down yours. The refrigerator in the house is divided into zones, and the sofa in the living room is divided. However, in each other's pitfalls, I discovered the carefulness behind the poisonous tongue and the responsibility behind the strong words. As the fake show gradually took on a real meaning, the former rivals began to secretly add a new item on their "mutual cheating list": "How to chase your wife/husband".