Flashback
"Jungkook, come meet Jimin. He is one of my closest friends here and I'm sure he will be glad to help you..." Namjoon says introducing his younger brother to Jimin
"Help from this shortie?" Jungkook smirks looking at the smaller "..nah.."
Jimin smirks back as he steps closer towards Jungkook, yanking his collar down so suddenly that Jungkook gasps as he is forcefully bend over
"Don't call me short, you punk!" Jimin whispers into his ears before Jungkook feels a sudden blow to his tummy making him topple over
Namjoon snickers in the back watching his tough baby brother be reduced to a helpless bunny in seconds "...by the way don't mess with Jimin. He has a black belt in taekwondo"
"Welcome to hell!" Jimin smirks as he crouches down to be eye level with the taller
Jungkook stares at Jimin dumbfounded as the smaller pats his cheek with force, with every word he spoke "...don't! Ever! Disrespect! Me! Again!" And with that Jimin stands up and walks away
It was the beginning of literal hell for Jungkook because he had fallen for the cute senior but Jimin didn't seem to be interested in him at all. So he tried to please Jimin in every way he could - whatever Jimin asked him to do, he would do, no questions asked
But no matter what he did, he could never confess to Jimin, he was too scared that the small senior would want nothing to do with him