3 girls
Sungah : she is ok, a bit too naive and kinda... Hmm... She imagines living in a Perfect world, she's not shallow but kind of. She is "meh, she is a good girld with good regards towards everyone" but not more
Yuri : she can fit pretty well to Joonwoo, she had the same path as MC, bullied etc now she is pretty, and pretty wild on a Side, plus she is really kind to Joonwoo
But something's off with her. Ok she is kind and really appreciate (admire his bravery ?) Joonwoo, I think she just wants to keep Joonwoo as a friend and no more, seeing bully guy as the one she loves. (it's her who put make up on bully guy, why she didn't maked up Joonwoo ? All this details lead to believe that she has still a crush on bully guy. Even when she heard the conversation between Joonwoo and thug Guy, she just smiled, she discovered that MC loves Sungah, and still was happy to see they were again friends like before (ok next chap put an end of their friendship)
Hamin : it would be the perfect girl for MC, she think as the same way as Joonwoo, she can understand What's the problem of Joonwoo in any circumstances and try to pull out MC of his proper issues (psycho or facts) but personally I think she is the kind of girl who helps the others without helping herself even if she is stoic and cold she'll not involve herself in Joonwoo's life and that's the problem : she wants to get close to Joonwoo with her methods, by being here when he has some issues but she can't involve herself cause of her attitude (maybe a protection or something like that ?)