Eckol

this character's name is Eckol, and he chooses to squat in Non-Euclidean Reflections (or NERs).
A NER approximates to colonies of pocket dimensions, the cells of which are comprised of the collective unconsciousness' memory fragments, dreams, and so-on. think 'the backrooms', silent hill otherworld, yume nikki dreamscapes. in this case especially think mystery dungeons. They tend to have safe houses established for travelers to safely teleport to and from them, and safe houses often have nigh-infinite dormitory space, allowing voidtraipsers like Eckol to indefinitely squat within them as their home.
it's the sort of environment where it'll generally be devoid of people aside from travelers, those who find themselves suddenly outside their home reality, or those freshly borne into unreality via the void's countless tendrils.

absolutely the type of person who upon hearing "backrooms doesnt charge rent" would go searching for lease applications. isnt antisocial, but also doesnt need people around to enjoy existing.