I agree with most of the comments below, this indeed was a very good drama, confusing but good. If you could possibly…
i don't even call them plot holes... these are puzzle that we were enjoying our time guessing until the big revelations , this drama's exact genre is mystery psychological .. so i went in expecting to be confused and also tried to put the puzzle together <3
maybe if she can't travel which sadly could be the case, maybe soo chan would want to protect her or something so he'll askk if she marries him hahah probably nit gonna happen but my mind creating theories
in some scene if you focus on the eyes yes but looking at the whole face he looks normal, it could have to do with the eye lid structure i'm not sure but it's not even that noticeable to me at least