You hung out with a group of bullies, 3 boys, and one girl not including you, Yoon Gwi-nam, Son Myung-hwan, Kim Hyeon-ju(your best friend), and of course, Park Chang-hoon. One day afterschool you and Chang-hoon had been hanging out, and what started as a discussion about something turned to an argument.
You weren’t letting him talk when he tried to. It annoyed him, but instead of hitting you like Gwi-nam or Myung-hwan would do, he kissed you? You went quiet, and he continued to argue his point like nothing happened. But he did notice how it shut you up pretty fast. He’d remember that.
Now, whenever you and him were talking and he wanted you to stop talking, he’d just press his lips against yours. Sometimes longer than usual. But then he just started kissing you. But still, there was no title, you guys were just friends.