I believe the guy in taekwondo is kinda jealous about the glasses guy talking to the girl so he closed the door under the excuse of them being loud but it turned out they actually weren't so he blushed ig from knowing how dumb it was idk anyways the guy with the glasses I think is blushing out of sadness because he was glared at by the taekwondo guy bc sometimes people get red out of embarrassment or maybe it was smth else (〜￣△￣)〜
Haejin (glasses MC) was blushing bcus the girl was teasing and i think he was getting jealous of her (she acted like she has a crush on someone in the room)
Kihyuk (taekwondo guy) is jealous of Haejin who he thinks is flirting with the girl
So cute but I dont understand the last parts. Can someone explain? Like why were they blushing