Liu Yang, a modern young man obsessed with the history of the Three Kingdoms, undergoes a strange transformation after staying up all night watching a documentary about the era. His soul transmigrates to the Three Kingdoms, where he becomes Liu Shan, the future ruler of Shu Han.
At that moment, the Battle of Changban is raging, with smoke filling the air and the thunder of battle all around. Zhao Yun carries the young Liu Shan, charging alone through a sea of enemy troops, riding in and out seven times with blood soaking his armor like a demon god descended from heaven. When Liu Bei sees Zhao Yun return, he hurries forward and takes A Dou from his arms. Looking at his beloved general, drenched in blood and fiercely loyal, Liu Bei is overwhelmed with emotion: boundlessly grateful that Zhao Yun saved his life, yet ashamed that he himself could not protect his son. To express his feelings and show how much he values his followers, Liu Bei grits his teeth and throws A Dou to the ground. The instant A Dou hits the ground, a strange light flashes, and Liu Yang's soul travels through time and takes possession of A Dou's body. By a twist of fate, Liu Yang has become Liu Shan, the future ruler of Shu Han...
