People will come to you because you are explaining the "reason" "development" they said doesn't exist for the end game
well I just want to point that out because I love Karam so much and I want to give my opinion as a fan who always looking up at him. I mean I know Junseo got some big development too, but it's a onesided development, same as Yoonsung. it's only Junseo who changes towards Jaewon. If Jaewon changes towards him, he shouldnt even considered himself to confess to Karam. but he never confuse or waver about it (up to this newest chap), even if Junseo being so nice to the point his affection is questionable. The fact that Jaewon still confess despite everything that happened and Karam started to feel bothered about it can be considered as a development too and it's even mutual since both of them changing because one of another.
Right?! I think the same as you but apparently Karam came to like Jaewon out of nowhere ? So seeing your comment made me happy ananso I wanted to warn you because in previous comments with the same purpose as yours, people were quickly to dimiss that there was a development even if it was subtle.
I dont know if people find Karam lack of chemistry with Jaewon but I do notice their hints bit by bit as the story progress like, even though Karam himself didnt realize it at first, but his eyes is always focusing on Jaewon. ok maybe it's all on his nature that he likes to help people and Jaewon is one of that people. But, the more troubled Jaewon he sees, the more Karam wants to butt in (esp in chapters when Yoonsung appeared as a transfer student). but at the same time, Karam thinks he shouldnt be nosy too, because it's personal matter and he doesnt have a confidence that Jaewon would be open to him and probably would be troubled by his nosiness, (which is also his lovable traits to think about the other party feeling).
but nevertheless, he still wants to help him, even if he only got a big picture of what's troubling Jaewon (Yoonsung existence) he keeps helping Jaewon in the shadow (He warned Yoonsung not to trouble Jaewon when Jaewon didnt see it), it's like the opposite act of Junseo, who helped Jaewon in the front (because Jaewon told Junseo about Yoonsung so it's fine to butt in of course.)
even after the volley ball incident Karam started to think about Jaewon because he felt something when Jaewon touched his cheek. I know at this current chapter he rejected Jaewon but probably because it was so sudden for him and Karam is the slow and serious type that maybe he still dont understand his own feeling too, and didnt want to lead Jaewon into something before he is sure about it. and of course, thanks to Yoonsung who made Karam realize it.
I'm that people who got happy with the ending, but of course having season two would be better since I could see Karam and Jaewon relationship deeper. And also I got curious about Junseo's life after his heartbroken moment (because I find it unsatisfying too to leave Junseo just like that... I mean I know it's hard to befriend with someone you love who didnt love u back, but, the ending felt as if Junseo cut ties with Jaewon and it makes me sad)