Looking for the title

[darknesck]

Good day, im trying to find again this one manga or manhwa which the intro plot was like:

dude discovers the supernatural or something like that, and its something about of how deep your soul goes and the deeper it goes the more crazy stuff you see and such. i remember that for him to not go that deep, he needed to steal the name or folklore of another being so that he could stay in X level and not go even deeper or something.