On the eve of her wedding, Bai Qiandu received word of her fiancé, Zhongli's death. This shocking revelation turned Qiandu's life on its head and she learns from others that he suffered from severe depression. Was it an accident that Zhongli died or pre-mediated suicide? In order to uncover the true circumstances behind Zhongli's death, Qiandu sets out on a journey to retrace his steps. And the unexpected truth she ends up finding out is…