In a High school of a fantasy world, students spend their time learning magic and sword fighting, training to be adventurers. At the botton of the school there's a special dungeon to test their skills. The protagonist is one of these students who want to become someday a great hero.

In a High school of a fantasy world, students spend their time learning magic and sword fighting, training to be adventurers. At the botton of the school there's a special dungeon to test their skills. The protagonist is one of these students who want to become someday a great hero.