Demonic Human

Zexur and his friends decide to go to their first dungeon as new adventurers. Just as everything was going great, the dreaded moment comes to fight the boss and for some obscure reason he turned out to be much stronger than he should have been...
Events have taken a tragic turn and Zexur's life is now turned upside down in a darker and unexpected way than he could have imagined.

Thanks to @chansharhe for allowing me to touch up one of his illustrations, check out his work if you like the beginning after the end.