spoilers for anyone else.
our mc, seonwoo, wakes up in the au/game at the beginning of the story. he finds out there was a doctor!seonwoo in that universe he swapped lives with.
the ending chap explains that our seonwoo was originally from the au/game and when he was like 10 years old he swapped universes with doctor!seonwoo.
which means at the beginning of the manhwa he wasn’t swapping lives with doctor!seonwoo he was swapping BACK bc that was his original home. you even see doctor!seonwoo get so happy to see his parents again after like 20 years of living in that au/game. make sense?

Any good great souls … pl explain me the ending chap of Creating a hidden ending manhwa… as much as I loved the beginning of the story and the end just puzzled me .. I was analysing beyond my IQ …