Ji Yan and Bi Tingxuan meet by chance on their university campus. One warm gesture and one lingering glance are all it takes for love to take root. They stroll around campus together, share the joys of youth, and promise to stay by each other's side for life.
But a heated argument shatters their happiness. During the cold war that follows, Bi Tingxuan gets into danger. Ji Yan rushes to her side without hesitation, only to be beaten by thugs and lose his memory, forgetting Bi Tingxuan completely, the woman he loves more than anyone.
Not knowing the truth, Bi Tingxuan believes Ji Yan cruelly abandoned her. Crushed by the pressures of life, she reluctantly marries someone else, only to fall into a nightmare of domestic abuse. At Bi Tingxuan's wedding, Ji Yan suddenly regains his memory, but by then it's too late.
When he learns that Bi Tingxuan jumped to her death because she could no longer endure the abuse, Ji Yan completely breaks down and loses his sanity. In his maddened world, memories of the past keep resurfacing. The moments they let slip away and the love they never confessed become blades lodged in his heart, a heartbreaking sight.
