In the fifth year of Baoyou's reign in the Southern Song Dynasty (1257), the Mongolian cavalry swept across Europe and Asia, and the military front was directed at the peaceful Southern Song Dynasty. The tragedy of the Yashan naval battle in which 100,000 soldiers and civilians died was supposed to happen as scheduled. However, Zhao Shijie, the archivist of the Soul Registration Department, Li Wei, the supervisor, and Qin Honglian, the senior executive of the General Administration, who were in the Yin Division, accidentally touched the secret and traveled to the end of the Southern Song Dynasty with the "Soul Breath Jade Pendant" (an artifact of communication across time and space). They were dormant as Zhao Rui, a descendant of the Lin'an clan, Li Ke, the leader of the Xiangyang military camp, and Qin Sanmei, the daughter of the Qinjiabao lord of Diaoyu City, determined to use modern wisdom and historical prophets to rewrite the fate of the Southern Song Dynasty.
