Taken by Zealla, the goddess of dungeons, with a couple hundred other souls to become dungeon cores on the planets she is worshipped on. 

This is the story of one such person who was soul napped and made into a dungeon core without them knowing. Join them on an adventure of becoming a dungeon and exploring how to actually be a proper dungeon. While also trying to defy Zealla and become what they want to become in their new life.