During summer, after high school, a teenage boy confronting the confusion of his life tries everything he can to find a way out. But he fails, murder included.

This is the story of a puppy that touched hundreds of millions of people around the world. Hachiko is a cute Chinese pastoral dog. He met his destined owner Chen Jingxiu in the vast crowd and became a member of the Chen family. With the passage of time, the once beautiful home is no longer there, but Batong is still waiting where it is, and its fate is closely tied to its family.

An 18-year-old skater boy, Cheng Fei, discovers his half-sister, He Sheng, whom he never knew, and gradually unravels a family secret that has been hidden for years.