Lin Yipei is a 21-year-old female first-year graduate student in the Department of Materials Science at Xi'an X University. Her father died of illness when she was young, and her mother remarried to the United States when she was 14 years old, leaving her and her brother Lin Yipei, who was eight years older than her, to depend on each other. It also happened that her brother received a full master's degree in clinical medicine from Y University in South Korea. From then on, she began to study alone in China and spend holidays in South Korea.
Wang Yichen, a 22-year-old male, is a pre-debut trainee in China under South Korean ME Entertainment. His parents divorced when he was ten years old and he lived with his mother. After graduating from high school, he was discovered by a talent scout and went to South Korea to start a six-year career as a trainee.
Tough, stubborn, proud, and cold-blooded on the surface, he and she met in a foreign country because of a minor traffic accident. It was not a big deal, but it escalated due to the indifferent and perfunctory attitude of the perpetrator, causing her to accidentally end up in the hospital while seeking justice for herself. From then on, the road between enemies was narrow...