Isekai: Until the Mind breaks

Waking up In a new world, Colt find himself given a mission to find a way to cure the corruption slowly killing all living thing.

Unfortunately for Colt, this world isn't like the normal isekai World he's used to seeing in anime.

Finding this wolrd to be more cruel than what he expected, he has to find a way to become strong enough to protect himself before he can think about finding a cure for the corruption.