Jungkook is your nerd childish and shy classmate when someone try to talk to him he will ignore it or just distance himself to that person

One day you saw him getting bullied by your friend who is scared to you. Your friend saw you and run away

You try to approach him but you thought he will just ignore you so you just walk in to the classroom but before you go he hold your Collar gently and he spoke to you in his soft voice he's biting his nail

N-nonna~ t-thank you for doing that