no, this doesn't make sense, tho, not meaning to sound rude. they're at yi-seung's place? and you're right, it can't be the hyung since he's kept in the hospital buttttt I think it might be like.. a friend? maybe the doctor that's his friend? orrr maybe someone new and he finally gets a love interest (my hope)
oh i think this is what is going to happen. if the author will end this in season 2 (i remember her saying this will only have two seasons), and both seasons will have the same number of chapters, which is 35, then we are near the endgame so chaejun’s uncle appearing now makes sense as i think he has a big role to chaejun’s condition.
That’s what I’m thinking as well. I’m guessing it’ll be around the same amount of eps, give or take. I know we’ll also have side stories, but I’m assuming the plot will be resolved by them (I hope the side stories will be their Canada honeymoon lowkey).
I’m really excited to see Chaejun’s background finally fleshed out :D
I’m not saying that Chaejun and Seunghyeon are at their home. I know they’re at their brother’s place.
What I mean is that their uncle is at Chaejun’s place and is calling Chaejun to let them know he’s coming over. Obviously, the two of them aren’t at home nor are the answering their phones bc they’re getting freaky at Yu-Seung’s place LOL it’s just a theory based on the context clues.
I based my theory off of the fact the person at the door cannot possibly be Yu-seung and off of the fact that (even if I would love it) I don’t think they’re introducing Yu-Seung’s love interest yet.

My theory is that the person at the door is Chaejun’s uncle. It can’t be Seung-Hyeon’s hyung because the hand he was using to enter the door code is the same one he injured.
The fact that he knows the password to the home and has direct contact with either Seung-Hyeon or Chaejun leads me to believe it’s Chaejun’s uncle.
I also think it’s his uncle because the plot about Chaejun and Seung-Hyeon meeting in the past stills needs to be fleshed out, and I think Chaejun’s uncle will be one of the keys to that LOL