The resourceful protagonist Zhang Yi (Liang Dawei) sought medical expenses for the weak and sick sister Zhang Ying (Jinmeng Yangzi), and entered the college with the purpose of finding the legendary treasure of the heavens, and met the Mohist school here. The descendant of Duanmuzheng (Zhang Ruihan), the sultry and human librarian Nantang Prince Li Yuyu (Li Wenhan), the melancholy divination of the divination girl Cui Jialuo (Zhang Xixi) and the innocent and lively Korean Princess Wang Enzhu (Ai Xiaoqi).
