guan yu (played by hu yuwei) and zhang fei (played by bo yan) were repeatedly dropped out of school because they loved the heroes and righteousness too much on weekdays and always caused a series of troubles. just when the two were desperate, a man named liu bei (played by chen de) appeared in front of them. liu bei said that they were qualified to go to the best aristocratic school in the country, the eastern han academy, but the tuition fee was high and he could not bear it alone. bbb。 zhang fei volunteered to propose that the tuition fee problem could be solved, so the three of them became sworn brothers. however, at this moment, a stone landed on liu bei's head from the sky, causing him to fall into a coma. the space-time black hole teleported four young men, xiu, wang dadong, ding xiaoyu and wang arthur. in desperation, xiu, who looked similar to liu bei, had to stay and pretend to be liu bei first, while the other three were preparing to bring true liu bei back to modern times to seek treatment.