Liu Qiheng

Deux inconnus se rencontrent dans un train. Entre eux se noue un lien amoureux qui évolue au fil des années, au gré des séparations et des retrouvailles.

Ph.D. candidate in Physics Mu Cheng He catches a third-year student in English Xue Tong cheating on an exam. When he even becomes the substitute teacher in her elective course Russian and makes her study with him after classes, her hatred for him only grows. Over time, however, Xue Tong discovers Teacher Mu’s true character and comes to secretly love him.

Geng Geng is a normal high school student trying to find her place in the world. Her father just remarried and she's adjusting to her new family. She's struggling with her assignments at her new prestigious high school and she's feeling quite lonely. On the first day of school, she meets a cute boy Yu Huai and they start off on the wrong foot but quickly he becomes one of her many new friends. She even attracts the class rebel Lu Xing He and he announces his love to the world. Daily school life becomes quite enjoyable but when school ends, will she find love with the boy she always crushed on or the one who was always there for her?

Yu Zhou Zhou, a math prodigy, defies her teachers and family's expectations and elects to study liberal arts. Though the transition from math & science to liberal arts major is difficult, she found joy in the new challenges, as well as making new friends and reconnecting with old ones.