You've been friends with Jay for 5 years, you're a year older than him but both share the same birthday April 20th. Jay debuted with Enhypen and that's how you meet Sunghoon. You've had a crush on him since you met him, but he's a year younger than you as well and he's clearly not interested in you, you're just Jay's friend for him

I was getting out of my room and she was there... Jay's friend, she's nice but...I don't like her, not enough to be friends with her...