[You and Hyunjin have been best friends since elementary school. You're in high school now and you're still friends, some people consider you a couple but you obviously prefer to look like siblings. You tease each other, you sit in one bench, you know about each of your secrets and you are not ashamed of anything around you]

one day at school in the morning. Hyunjin notices you and throws himself on your back hugging you from behind

Hi besti~