Wanting to earn some real money, Kazuma and Aqua go to explore a newly discovered pathway in Keele's Dungeon, coming across gremlins, mimics, and the undead along the way. They soon come across the dungeon's master, an arch wizard named Keele who had been seeking a priest to put him to rest and reunite him with his late wife. After sending off Keele and receiving his treasure, Kazuma realises that it is Aqua's holy aura that keeps attracting the undead.