Who Is He?

It's been a year since MC first joined RFA, and they've had many parties. She was very good friends with everyone, and had gone through so much with them all. Seven's brother is part of RFA now too. Everyone is happy, and it's all worked out. but now, a new person has found the app. Who is he?How did he get here?What will happen next in the crazy lives that comes with RFA?
Find out when Peter joins RFA!

I don't own any of this.

Also, MC didn't go down a specific route in this. Though she did become great friends with Saeyoung instead of lovers. This does contain spoilers so don't read further if you haven't explored all of the endings or secret endings.
This is one where V died, killed by Saeran... so yeah.