Song Hyemi (fictional): Jay's gf. She is official to him & the people around him. Just not to the rest of the world because she doesn't want to ruin his career. She is 22. Also JYP's God daughter.

Jay Park: He plays himself. The timeline is just a tad different. Here, he owns AOMG at 25. 

Of course the AOM & AOMG boys will be supporting casts. Along with a few other idols you'll most likely recognize. 

The story will be in Hyemi's POV.