Xia Muchengyi runs a flower shop called Mellow. He does the job he likes and leads a stable single life. Sometimes Xia Mu's sister places her daughter with him when her daughter is absent from school, and sometimes she asks Mu Fan, the owner of the failing ramen shop, to take care of her. The daughter of the owner of a nearby barbershop, Hongmei, a middle school student, has been secretly in love with Xia Mu. There are many guests coming and going in the flower shop. One day, the regular customer Marizi expressed his love to Chengyi, and his husband was also at the scene. In this love group comedy, where will their relationship go?