Guan Yu and Zhang Fei meet Liu Bei upon arriving at their 24th school just as a group from another school attempts to invade them. Guan Yu manages to chase them away, however, that school refuses to let them in. Wanting to use Guan Yu and Zhang Fei's strengths to his advantage, Liu Bei suggests to enroll Dong Han Academy by becoming sworn brothers with them. In the meantime, Wang Da Dong, Wang Ya Se, and Ding Xiao Yu from the Gold Dimension go on a cross-dimensional vacation with Xiu from the Iron Dimension. In an unexpected turn of events, Liu Bei gets injured by Da Dong and Xiu is forced to impersonate him for the time being.