Ren Guang Xi, a cocky law student, seems to lead the perfect life. He’s the sole successor to a huge and famous business and a talented ice hockey player with good looks and charisma to boot. But in reality, his lonely life lacks joy, laughter and motivation. That is until he meets Liang Mu Cheng, the new bento seller at his school canteen. Although orphaned at a young age, Mu Cheng does not let her past affect her and lives life with great passion and determination. A harmless bet brings the two together and Guang Xi slowly changes as Mu Cheng teaches him how to give and love. Tragedy strikes when Guang Xi suddenly has to go through a major brain surgery which causes him to lose all memories of his past. His mother orders Mu Cheng to leave him and the latter has no choice but to do so. Little does she know that she already had Guang Xi’s child.
Six years pass. Mu Cheng lives a quite life with her young son in the country side while Guang Xi is now a successful lawyer and is engaged to He Yi Qian, the kind and beautiful doctor who took care of him after his surgery. Guang Xi has flashbacks during a case and hits his client. The community service he is mandated to do by the law board sends him to the same town that Mu Cheng and Xiao Le is living. There, he develops a bond and friendship with the mother and son. After he leaves, Xiao Le goes to Taipei to find “Uncle Guang Xi” and meets Guang Xi’s mother and collapses from his illness, diabetes. He Yi Qian operates on Xiao Le and gives Guang Xi a wristband that contains photos of him and Mu Cheng. The day before the wedding, Guang Xi sees a memory card of pictures of the two lovers. Guang Xi suddenly realizes that everything that everyone told him was all lies and the memories begin to rush back. A strangely familiar piano piece stirs Guang Xi’s heart as he struggles to recall his past romance with Mu Cheng, which leads to him knowing about the true father of Xiao Le. He leads to the court to fight for Mu Cheng’s friend’s custody. How will the couple make up for six years of lost time? Happiness, which stop do I alight at?