The Steel Emperor

Heroes of Gauri, conquer another world! The most glorious name on this land: Gauri. The one who protected that name—people call him the Steel Emperor! Ko Jin-cheon, the last great general of the fallen Gauri (Goguryeo). At the moment of defeat, he falls into another world together with his elite unit, the Black Armored Ghost Cavalry A strange land where elves, orcs, dwarves, and mages live. If they cannot return, they must establish a new Gauri. Ko Jin-cheon raises his banner once more to conquer the continent.