Ji Yaqing, is engaged to be married. She sets off to Yunnan in order to track down the story of the long-lost love of an elderly Taiwanese, whose grandson Xu Nianzu shows up there as well. Since they share the same quest, the two decide to take an impromptu seven-day journey together in the hopes of unearthing more details. In the process, they fall into a momentary but passionate love, which will bring viewers to the edge of their seats as they anticipate what will happen to the couple after the seven days pass.
