Repeatedly testing each other is the most painful thing of all. Zhao Qu has never gotten over his girlfriend’s betrayal seven years ago, while He Yue’s difficult upbringing has made her distant and cool toward everyone. Both are extremely rational people, but after falling in love, Zhao Qu suddenly discovers that his ex’s betrayal was directly connected to He Yue. The truth leaves them both unable to face reality. He Yue’s friend Cui Lin offers Zhao Qu and He Yue plenty of insight as they navigate love, while Su Yu’s feelings for He Yue raise one final question: how will they turn out?