The Gauntlet (The Gauntlet #1)

Codi James is a chronic underachiever. A straight C student, her life is going nowhere. Causing havoc at yet another school it looks like she's heading for another expulsion, until one teacher decides to call in a favour from an old friend. Codi is sent to the one place where her aggression might do her some good. Joi...

Puppetmaster of the Dungeon

A human from earth is sent to create a dungeon and defend it with all he can. His goal is exploit everything he can and become the strongest! It's a pity he inherited one of the weakest dungeons with a foolish dungeon core.