Li Yu, an unknown contemporary young man, returned to the Republic of China and met Zhang Huaijin, who claimed that Zhang San's ideal was immortality. In getting along with Zhang Huaijin, Li Yu got to know Zhang Huaijin, the meaning of immortality, and the luck and misfortune of this era of the Republic of China.
The above is the serious version, summarized in one sentence, the rural (?) Love story of Zhang San and Li Si.
Not serious X small serious
Concept: Zhang San and Li Si's primary school chicken love story