Ruan Nanyin catches her boyfriend of ten years, Gu Jingnian, cheating on her. She impulsively invites her boyfriend's best friend Pei Zhiying, and is unexpectedly reincarnated back into her sophomore year. In this life, she saw Gu Jingnian's true face clearly, and at the same time she knew Pei Zhiying's secret love that had been buried deep in her heart for a long time. Ruan Nanyin was determined to cut off the wrong relationship and took the initiative to get close to Pei Zhiying, who was silently protecting her. The party set up a bureau to collect evidence of Gu Jinnian's derailment. During the tug-of-war test, the two overcame the barriers of identity and went in both directions, breaking away from the wrong fate and gaining sincere and passionate love for each other.
