An ambitious but novice dungeon maker arrives in a town which is suffering attacks by violent monsters. He buys a vast plot of land at the outskirts of the town to create a grand dungeon to lure various monsters which he will hunt, collecting gold and items. He hopes that his completed dungeon will attract the legendary Wandering Demon. Defeating this menacing foe would free the townspeople and win the Architect acclaim as a true dungeon maker.

The townspeople are initially skeptical about the Architect’s ability to achieve his goal. Over the years, they’ve watched other dungeon makers arrive with great plans that ultimately fail – falling prey to the very monsters they’ve lured into their dungeons or abandoning the town. However, as the Architect’s dungeon grows and improves, luring rarer and more powerful enemies, and he begins bringing back more valuable treasures, the townspeople offer him support. They give advice about the intricacies of dungeon making, sell crucial items, provide weapons and magic spells, treat the Architect when he is injured, and offer generous rewards in exchange for the completion of various quests within the growing dungeon.

Whether the growing hopes of the townspeople and the Architect will be realized depends on the quality of the dungeon he creates and his developing battle skills.