Lin Huixing was driven crazy by the pressure to get married, so she simply broke the pot and went on a blind date. Unexpectedly, she walked to the wrong table and bumped into Gu Yanci, an obsessive-compulsive disorder. She declared madly on the spot that she was mentally unstable, had zero expectations for marriage, and was only acting as a shield for the scumbag. Unexpectedly, the other party accepted her in full and asked to get the certificate the next day. In less than twenty-four hours from the mistaken identity to the flash marriage, she somehow became Mrs. Gu. The Gu family's old house is constantly causing trouble. She conquers the old man with her painting skills, and even takes on the important task of "correcting her obsessive-compulsive disorder." In the frivolous daily life of living together, two people with different thoughts gradually became sincere while teasing each other.