A powerful monster appears in the 18th floor without warning, leading Bell and the other adventurers to fight for their lives against it. ...

Everybody is relaxing on floor 18. Bell and friends visiting local town. In town there are some adventurers that have grudge against Bell. ...

Bells party is trying to get to the safe zone on floor 18. Search party is trying to find them. ...

The middle floors are tougher than Bell dreamed. A desperate party rushes past them and the monsters following them focus their attention on Bell and his comrades! ...