Li Qingtong was born in an ordinary family in Northeast China. His 17-year-old life has never been turbulent. Until he met Li Jinjin, his original life began to get out of control , under Li Qingtong's straightforward and happy appearance hides a lot of forbearance and sacrifice, and Li Jinjin and his mother have been dependent on each other since childhood. Because of a special time-traveling trip, they went back 20 years ago and met their mother Li Qingtong. The two became friends.
Li Jinjin got to know his mother because of time travel, and the two made a lot of jokes because of their age and personality differences. After going through sweet and bitter youth on campus, Li Jinjin learned about the forbearance and courage of his mother, so he returned to reality in an accident, and the rigid relationship between the two was gradually relieved. Supporting each other to find what we really love in life, the content of the whole plot is sci-fi, so there are many changes in the times during the reading process, and the audience loves it very much.