K.O.3an Guo (2009)
Original title: 終極三國
K.O.3an Guo is a 2009 Chinese-language sci-fi & fantasy series. It stars George Hu, Nylon Chen and Lorene Ren.
In the Silver Dimension, Liu Bei, Guan Yu and Zhang Fei plan to enroll in an elite academy as sworn brothers, but KO One visitors derail the plan.