The young man Li Nanxi accidentally met turned out to be Duan Lanshan, the child of his father's partner. When school started, the boy transferred to their school and became classmates with him. After getting along continuously, the two quickly became good friends. However, when getting along with Duan Lanshan, Li Nanxi discovered some little secrets about Duan Lanshan.
Intention: As people grow up, water will flow forever, and this feeling will never end