Mentally Unstable Void Mage in Danmachi

What happens when a certain teenager's affinity is awakened by God when he died and now possess the ability to wield said affinity. Now imagine said teenager is mentally unstable and is now thrown in the world of Danmachi against his will with his newly awakened magic. -==-=-=-=-=-=-=-=-=-=-=-=-=-=-= Note the cover picture isn't mine, if the owner of the picture wants me to take it down then I will gladly. *Spoilers* And this not a picture of mc, it's the gear the mage in the picture is showing is close to the future gear our mc will have. So a bit of spoiler ;)