The accident three years ago caused Akane to lose her half-sister, and at the same time caused her relationship with her childhood sweetheart Dongzhi to come to an abrupt end; when they met again three years later, they had a new life trajectory. Kazuya, who is also an intern in the hospital, attracts Akane with his sincerity and considerateness; Xiaoqian who appears next to Dongzhi has the same face as Akane's dead sister, which is like a mirror, repeatedly reminding the two of the past that they cannot look back on. Witnessing the life and death of patients around her, Akane struggled repeatedly. Should she choose to bear the memories of the past and fall in love hard, or should she wave away her past dependence and face tomorrow?