yo, all of this feels like mc's back story, and his present is where he's with a real man, like a real man he deserves. based on my experience with many ukes with past relationship trauma, this kind of first love is one of the main reason. (geez I imagine them breaking up at some point then meeting up as adults then this trsh seme wants to go back with uke and trigger his bad/traumatic memories of high school. that's when wholesome future seme comes to the picture then shoo him away)
Do you guys think they kissed?
http://www.mangago.zone/read-manga/shadow_queen/uu/d_chapter-36/pg-5/
is kim muwon really the second male lead here? his screentime's been on&off, lacking consistency. anyways, they remind me of operation: true love couple, but I guess more wholesome version?