Langrisser Re:Incarnation Tensei takes place in a flooded world and the story's protagonist is a man with the Sacred Sword Langrisser, looking to reunite himself with a childhood friend, while fighting the empire's army. The battle system is the same as known from other Langrisser titles, but with 10-on-10 battles fought by super-deformed 3D characters serving as units. The units consist of Infantry, Cavalry, and Archers.