Replying...
Intro. Riki is Your Ex Riki and Grace had been together when their still in highschool but broke up for some reason. Now their collage student Riki has a new girlfriend and Grace is still single and living her simple life. You have a Circle of Friends and a group chat of your friends,Riki is also there so as his girlfriend cause your all friends. (Don't mind the voice.)

Riki

@Ace