The Hero Is Overpowered But Overly Cautious, Vol. 2 (manga)  (English, Paperback, Shrager Barri)

The continuing misadventures of Seiya, the absurdly overcautious hero whotried to buy a thousand bottles of holy water as soon as he knew he'd befighting undead, and Rista, a goddess who's always waving her "literally holierthan thou" attitude in his face! Things start off badly when Seiya immediatelybutts heads with the Dragonkin who were supposed to become his allies-and doeshe have a plan for dealing with the army of ten-thousand undead approaching thetown?!