Since Nora has retired (sadly), I put this thing together...
I was convinced of the Seju and Sumin ending, because it was seemingly hinted throughout the manhwa. This ending was conclusive, final, and solid. It would have wrapped everything up nicely.
Apparently, this was never meant to be and it was not as important as I thought.
Disclaimer: First time making something like this, so I apologize if you cannot read the text that clearly or if the images are blurry. I suggest looking up the chapters instead if this is the case. This took me a couple hours (Nora, you have really affected me...)
The highlighted texts indicate "hints" to the ending. The others are scenes that mention "forever" and "marriage." I could only fit so much and I did not even get into the possible symbolism in the manhwa.
Or here: https://imgur.com/54CNh7k
Funny how this potential "set up" for the ending was unintended. I guess I read too much into it. Oh well.
Also, Seju does not know of this arrangement for her and Sumin. Check chapter 62. Guess she never will... I wonder if it will ever be brought up again (maybe briefly by her brother?).
Nevertheless, this manhwa will always have its great moments and I do not at all regret reading it or being part of this discussion. :)