The Huge Dungeon and the Wizard of the Gigantic School

is a Japanese light novel series written by Hideto Sado, with illustrations by Rei. The series began publication on July 10, 2013 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Amanogawa Private School── Students who aim to capture the huge underground labyrinth that spreads in another world Zera gather there.

In the "Strategy Department" that actually captures the dungeon, we aimed to conquer the unexplored dungeon by forming large circles and parties. Iru Arata, who enrolled in the "Strategy Course" this year, also has a party with Orihime Hoshizawa, a genius magician who is a beautiful girl with blue hair and manipulates various magic, and her classmates, and heads for the undeveloped dungeon traversal!