Time background: From the Wude period of Tang Dynasty (around the Xuanwu Gate Revolution in 626 AD) to the late Zhenguan period.
· Core Time Travel: Modern youth time travel as the fictional Chu King Li Xuance (the fifth brother of Li Shimin), who was frail since childhood and was sent to the mysterious military organization "Tiance Mansion" that integrated the Tiance Mansion martial arts system in "Jian Wang 3" to practice martial arts. In fact, it was also a kind of protection and exile from the royal family.
