They're back! The girls hailed as the Erotic Masters after solving the mystery behind the world's toughest dungeon are now living legends! But behind the accolades and fame, they blew all their money and ended up deep in debt.

Sometime later, after they finally paid off their debts, a blacksmith's daughter named Hermetia came to visit them. She had been randomly selected to be allowed to explore a newly discovered dungeon, but it was too difficult for a novice.

That's when she came to the DunEro Masters with a proposal: Will they explore the dungeon with her?

Explore the dungeons and acquire maps with these beautiful warriors. Grow stronger in battle alongside all-new girls. Gain lots of experience and face powerful enemies! It's time to set off on your adventure!