lmk if someone answers this
I think someone from the other world might need to do that whole magic experiment thing to "call" over people from another world
It's the clothes that do the trick, but I doubt Josepth is right in thinking that just anyone (but the og owner) can use whomever's clothes to return, cause otherwise the ML wouldn't have been satisfied with burning only the mc's clothes, he would've crazily gone after her swan boyfriend's og clothes too, the minute he learned about his presence.
i don't really remember but they can't follow the swans back to their world? Cause if they do all's good maybe.