Responses
I Reread chapter 11 of zombie hide sex the picture is different compare to the ones that in the chapter 2 so basically there are 3 separate universe.
I mean it could be, they are slightly different, but I figure it was close enough it was probably an editing mistake. The one they took from the original world (on page 35 of chapter 2) just looks so similar to the one from zhs.
Finally, confirmation it's those two! I knew it was the first universe couple from here in ZHS, cuz Mishiba found the pic of them they took at the end of vol 1! I'm super excited to see more of these two from either timeline (≧∇≦)