Hero summoned to a new world is given a "weak" common class while all the rest of his classmates are given an overpowered super class. Attacked because of his relationship with the class beauty, Hajime is cast down to the lower levels of a dungeon and is forced to find a way to survive eventually becoming "god" level in his powers by eating the monsters he encounters (even though it will kill him). Finding an ally in another prisoner trapped in the dungeon he seeks to survive so he can return home to our world.

Great, fun easy read. Was looking for the manga but library sent me this instead and I thoroughly enjoyed it. I might need to read more light novels.