Li Enhui, a young man from Zhejiang, was admitted to a university. In order to earn enough money, he makes money by selling watermelons.

Li Enhui is also very sensible, able to understand the hard work of his father, Li Anming, and has taken on the heavy responsibility of the family since he was a child to relieve the pressure of his life. Li Enhui is not only diligent in housework, but also studies hard. Through his own efforts, he was admitted to the police academy.