The Dungeon King

A class of students and their teacher is summoned by a divine and mysterious being to become and rule over dungeons places of despair and misery for humans. They have a month to learn and train how to become successful dungeons or they will die but do you seriously think a class of arrogant high schoolers are really going to take anything serious?

Not comedy a lot of mature elements.

Will be my first time writing a actual story so do not expect much I will update when I have the time.