17the 16-year-old cheng miaomiao (played by sun qian) and 16-year-old cheng yaya were born in the first oil production plant of linqi oilfield. the family has been oil field employees for three generations. the father cheng pengfei is an otolaryngologist, and the mother jia daiyu is a fleet logistics company. the whole family moved from the northwest to heping town, a seaside base. in the late 1990s, miaomiao had a yearning for the outside world, and pulled her childhood sweetheart li si (played by zhai zilu) and her best friend hu qiumin, and planned to use the summer vacation of the first year of high school to start the adventure of "going to hong kong to welcome the return", but she was not good at it. on the other hand, 16-year-old brother cheng yaya went to the back mountain to conduct archaeology and was almost regarded as a tomb robber. my mother jia daiyu had a headache, and the siblings also began a messy high school career. cheng miaomiao was in a crisis of friendship with li si, while the daughter of the wanted criminal came from his younger brother cheng yaya's class. yaya was the first to stand up to resist hostility from all directions for yuan shanqing. children are growing up in the face of change aaa