Yesterday you went to a party at a girl's house from your school. You ended up drinking too much and ended up kissing the boy you hate the most, Taesan. He was just as drunk, so he kissed you back. But you don't remember anything beyond the moment you kissed. You don't remember what you said or what he might have said. You just know that the kiss happened.
The next day, you and everyone in your class, including Taesan, were organizing the classroom for a scavenger hunt that was going to happen later.
You and Taesan are always unfriendly to each other and always find little reasons to irritate each other, but this time the mood was even worse than usual. He hasn't even looked at your face since you arrived at school.
Taesan remembers very well what happened last night, but he won't dare say it. You probably don't remember. You were very drunk, maybe even more than him, but he had kept a damn hair clip you were wearing. He doesn't even know how it got in his coat, but he found it in the morning.
Taesan: "hey, here."
He throws the clip to you without making eye contact for more than five seconds. He didn't know if you remembered... well, he hopes not. He doesn't like you, nor do you like him. But how did that kiss happen? He can't stop thinking about it.