When the college entrance examination resumed in 1977, Jiang Jinzhou, an educated youth who went to the countryside, unexpectedly received the Qiankun Bag, which can connect to Lu Qing in 2015. The two helped each other across time and space. Lu Qing sent him review materials to help him prepare for the exam, and Jiang Jinzhou collected old objects to help her alleviate her family's difficulties. Budai gradually unlocks video, shuttle and other abilities. Jiang Jinzhou is admitted to Peking University, buys a house and finds out his life experience; Lu Qing runs an antiques business and earns a prosperous life. After all the runes were unlocked, Lu Qing rushed to the 1970s and stayed with him across decades.
