No, it just means that if ‘our’ Jehee reverses the time by dying, ‘our’ seonwoo will be resurrected too cus they both belong to the same universe! This whole time, the main concern for Jehee was that he could not reverse time, as (our) seonwoo was from another parallel universe , so there was no guarantee that our seonwoo would also be back. BUT now that we know that seonwoo and jehee are from the same universe, he can kll himself and oir seonwoo will be back too! Idk in which universe tho. AND bcus our seonwoo originally belonged to the game world, its atleast guaranteed that he will come back to the game world no matter which universe he ends up in.

If by the answers in the comments “our” seonwoo is actually from the monster world the entire time wouldn’t that mean he’s actually dead and isn’t gonna just exit the game. Oh my god I’m so scared I’ve been reading this for so long I will literally kms if this has a short ending