Yuto and his monsters find themselves in an underground dungeon in Western Town, where an exciting (and cute) discovery awaits them at the end. Inspired by the reveal of another dungeon to the east, Yuto decides to find out if there are other underground dungeons to the north and south of the region as well. Amelia accompanies him on his journey, bringing along her pack of adorable gnomes, but will the party be able to find what they're looking for?