Shi Yan and Ling Tianmin were students in the same high school. Tianmin met Yan at a party and pursued Yan. The two spent a year happily. Tianmin planned to propose to Yan after the graduation ceremony, but Yan disappeared... Three years later, Yan met Tianmin on the road who had returned from studying abroad. She was happy but sad, mistakenly thinking that Tianmin had a girlfriend. Tianmin's good friend Jin Youdi met Shiyan during taekwondo training, and was attracted by Yan's indifference. When he learned that Yan was the girlfriend Tianmin had been looking for, would he tell Tianmin? ... ...