Cheng Huan, the female lead, unexpectedly runs into Liao Jia, her senior from high school who works at the same company, on her way home. Taking the opportunity to hitch a ride from him, the number of times they start to meet each other begin to increase wildly. For some reason, Cheng Huan is always able to get a ride from her senior. Unconsciously, they start to realize each other's feelings, with every ride together becoming yet another opportunity for them to grow even closer.