Gao Kai (Paul Chun) was a smart and brave new policeman. After his wife passed away, he resolutely gave up his ideal of fighting violence and protecting the people, and transferred to the Silver Band to take better care of his four daughters. Time flies. Now the eldest sister Yu Yi has grown up and married, but she is snobbish and unruly. She dislikes her husband Jie Lao for his low job and is inferior to her in every way. The second sister Pei Yi (Flora Chan) works with her boyfriend Ken to develop their careers. They have been in love for many years, but there is no result. The third sister Bao Yi (Sonija Kwok) has a high degree of education and holds an important position in a newspaper, so she is picky about the choice of boyfriends and it is difficult for her to develop a serious relationship. The youngest sister Cui Yi (Myolie Wu) is studying at university, but like all adolescent girls, she is unruly and has poor grades. These four daughters have their own problems, and parents all over the world are pitiful. Let's see how Gao Kai accompanies his daughters through every stage of life.