In order to celebrate their graduation from college, two modern girls, Ye Xin and Han Xiaoyu, traveled through time and space under a strange combination of circumstances. In that time and space, a series of dramatic things happened, such as saving people, starting a business, making sworn vows, and finding love. They met the cold-blooded killer Leng Xu, the master of the poisonous island Shangguan Yue, and the prince of intelligence Situ Qingming... How should they choose between family, friendship, and love???