Responses
Thats a really good analysis
I thought the seme was going to be a lovable boi while the joong was the tsundere, but joong is actually a sweetheart and shiwon is totally a yandere. The fact that he followed joong to another university without anyone telling him is really unsettling.
I guess I look at the second couple more of as a tsundere hero being pursued by the yandere supervillain he sort of has a crush on but knows isn't right for him.
Mr. Sparkles is like a Lex Luthor supervillain who knows how to get under the hero's skin. Even though the Hero tries to get away, he gets reeled in anyway by arch-nemesis.
Mr. Sparkles even has the evil laughter down pat. Muscles has the superhero body (just not the superhero smile).
Hopefully good will win out.