At last! An exciting package has arrived on the school grounds of The Hero Academy. The headmaster had ordered, from Dungeons, Inc., the latest in hero training devices – a brand new Dungeon Door. With just a few twists of mystical knobs and enchanted buttons, the Door can create a magical dungeon, complete with monsters and treasure, perfect for the amateur adventuring party.

But while the headmaster is adjusting the Door to train a group of promising first-year students, he accidentally trips and falls into the magical dungeon. Now, he’s trapped on the 10th level, and with no time to summon experienced adventurers, it’s up to six young heroes to enter the Dungeon Door and rescue him!