You/ Kim Haeyeon
 You are the smartest kid in your class like your sister, and you can sing and dance like your brother, not to mention your awesome rapping skills. You're 16, and you lived a normal life until your parents died. You live in LA and were born and raised there. Your mom is a music professor at a university, and your father is a judge, and he is known for being one of the best judges in court. 

Andrew Park
He is a senior in high school, and he is also your neighbor. You grew up with him, and he is 18.  Andrew is your best friend, and you like to spend time with him but everyone thinks you are dating. You guys are just friends, and he is like your oppa because your actual oppa is not around. 

Kim Jaeyoung
Your older sister who is now a lawyer is like your best friend. She is 27 and she took care of you because your parents were always busy. She was always there for you and always is. 

Kim Myungsoo 
  Your older brother who is an idol in the group INFINITE. He is 22 now but you rarely see him. You hardly know your brother because he was gone for half of your life. Inspirit fans know more about him than you do, and he is the last thing you want to talk about. 

Infinite
They are on your side because they think your brother is being unreasonable. 

Got7
Helpful sumbaes 

JYP Family
Just part of the story from here and there. 

Harmony
They are the 7 piece girl group that debuts under JYP and you are part of the group.