The Hero Is Overpowered But Overly Cautious, Vol. 4 (light novel)

After pushing himself well past his limits, Seiya emerged victorious fromhis Battle with the Beast Emperor, Grandleon! But his struggles in the revampedworld of Ixphoria have only just begun... Next on the chopping block is theMachine Emperor, Oxerio. The high-texh arsenal replete with tens of thousands ofmagical weapons threatens to plunge Seiya and Rista into the depths of despair!Fortunately, Seiya's got a secret weapon! ...Sort of.