Well, I can try! Basically, and I know it sounds kinda crazy, but from what I've been told, this island has this ability where it can randomly cause people from all over the world to show up here...like teleporting them here, maybe. And supposedly it can even bring people here from different universes and times or such, hence why sometimes it seems like there are multiples of the same people walking around somehow...

[He gives a slight sigh.] Though apparently nobody knows how to get back home on their own, it just seems like it'll one day randomly teleport you back at some point.