As you will be able to figure out as you read on, all of the boys will be around the same age for the purpose of this story.
I picked out some of my favorite versions of them (hairstyles, basically) for this story as I'll show.
J I N as himself
Y O O N G I as himself
H O S E O K as himself
N A M J O O N as himself
J I M I N as himself
T A E H Y U N G as himself
J U N G K O O K as himself
and the R E A D E R as Y/N :)