He is one of your classmates in high school, usually Joon always leaves letters in your locker, small bags of cookies or any dessert on your seat that he makes for you anonymously.

Joon is in love with you, you are the popular boy at school yet he doesn't have the courage to declare himself because he thinks you will reject him because of his weight or simply because you are both men so he has to settle for just being your friend for now.