Spoiler
He is a jerk!!!!! The reason he is making Na Saem fall for him (which he already is) is just to make Kyusung(?) angry or something... since he thought kyusung is Na Saem’s bf... which is obviously not it.
It was a flashback, to when siyeon(?) was offered to be in the school variety show. The incident tht happened when Na Saem picked up the cousin, he left his bag. So Siyeon took it w him. When he was offered the role, he doesn’t want it.. then kyusung went in the room to take his phone from the manager... and he received a call n smiled... siyeon thought it ws kyusung’s lover and chased after him... hearing him say,’give me a kiss pleaseee..’ siyeon wanted to see who it was (it was a video call) so he went closer by that time, the little kid (cousin of na saem, eunsung(i think)) gave the fon to na saem,,, so siyeon saw Na Saem instead and thought tht Na Saem is kyusung lover..... he recognized Na Saem face so he accepted the role. (He first checked Na Saem bag for and id, n saw tht Na Saem works at the school the variety show is gonna be filmed at)..
Why do i think kyusung is the father of eunsung? But then if he is, he wouldn’t be the pink hair’s lover at first,,, or r they not even a couple yet????
For now, in the raws, Na Saem nad siyeon are dating. Na Saem of course likes him, so his reactions to whatever siyeon does is like he is in love w siyeon, but siyeon thinks tht Na Saem is just acting, he even thought tht Na Saem acts this lewd when he is w kyusung. (╬ ̄皿 ̄)凸
I really hope Na Saem breaks siyeon’s heart when siyeon really, sincerely likes Na Saem, FOR A GODAMN PAYBACK!!!!!