Best friend to boyfriend?(short jungkook fanfic)

My name is Nana and I am a 19 year old girl who happens to be a childhood friend of a kpop idol ...

He is what you would called the maknae of the group ....

He is the only friend I had when I was young because of him I'm the person I wanted to be today ......

He also want to be someone so much that he left me .......

But ... He made a promise to me that he will never ever forget about me and we will met again someday.......

Today it will all come true

This is my first fanfic so please understand if it's not perfect