you have a girlfriend, she likes to flirt with other guys when she's bored, and she's also popular

While you are a president student council, and you also a popular guy

One day, when you give a punishment some students who is late to come to school, you saw Ara flirt with another guy, and you just watch annoyed and jealous

After class, you ignored Ara everytime, and it's make Ara curious

Ara: "what do you mean?,why you always ignored me!!" She pinned you on the wall