on top of my mind about ch89:
1- this is not the first occasion where we hear gossips among Hello Studio's employees about Sumin and Seju friendship "nature". ch6, ch50.
2- Seju explains in here that she doesn't understand the pain and grieve of losing a family member.. now that she was reminded of Sumin's parents death.. all what she ever worried about was always Sumin and not losing her. (this is again means that Sumin is her only true family)
3- what time is Saehyun referring to?.. when Sumin broke up with Seju in ch26 or when the assassin attacked her in ch76
4- There is a house that Seju's half brothers don't know about.. and now after they all inherited what they wanted, I think Seju might leave Sumin's house and stay there (there will be something about that house.. the Manhwa won't be ending next chapter)
5- I guess btw that Seju was the one who rejected to inherit anything.
6- another reference to the snow and ch2 flashback.. I agree with yoonie there is something about the snow between those two.. and how it is somewhat connected to their believe of fate.
7- I have no idea why Sumin said that she wishes this would be the last snow that they would be together in.. or why she refused to go see the place with Seju.. argh. I am out of ideas about this one.
8- interestingly, Sungji didn't knock the apartment door.. but some other door.. it could be the balcony.. but what is she thinking about.. and why did she stay in the balcony in the first place.