Yeah I get the vibe he’s obsessed tbh no hate to him I just didn’t get attached to him, also do you think the long hair guy knows something about hwan
I'm not sure about that yet. He could know about him being
(another spoiler warning here just in case)
a magical boy as well since he's in contact with the mascots and Hwan might've signed a deal with Moony. But he also had to search for Chiwoo and Moony said, that Jin was looking for the guy who signed a deal with Sunny for a long time and that they haven't seen each other for a while. So maybe he's out of the loop a little bit and doesn't know about Hwan. Anyways, we'll find out soon enough since he's present when Hwan shows up as magical boy.
THE THEORY AT THE BOTTOM CAUGHT ME SO OFF GUARD BUT IT MAKES SINCE OH MY GOD
have theory which includes spoilers from the raws ( I might be completely wrong here though)
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We've seen Hwan acting pretty suspicious throughout the story. At first he assaulted Chiwoo while he was asleep despite him knowing about Chiwoo's feelings for him (or at least it was implied that he has known about his feelings for a while) and it looked like this wasn't the first time. With everything we know right now he seems almost a little bit too obsessed with Chiwoo.
Besides, as others have pointed out, the minigame scene and the doll who happens to look exactly like him were pretty suspicious. On top of that we know from the raws (again, spoiler warning) that he's also some kind of magical boy. Which could mean that he knew all along about Chiwoo's side gig and just pretended to be unconscious when the monster in the cafe attacked. Which would be pretty fucked up. Why would he not help him (makes him look like a character Harada would write for one of her fucked up stories)?
Right at the beginning of the story, when Chiwoo says that he's been in love with Hwan every since then, they seemed to be in high school and while it's not completely clear when exactly he started loving him, if it happened during high school I think it might be possible that this is when Hwan made his contract and his wish was for Chiwoo to fall in love with him. Maybe Chiwoo doesn't actually love him, he was just made to believe that by whoever Hwan's contract partner is.