Aww this was wholesome… I’m not sure if there was a second couple though - the old group. If I’m objective, it could just be platonic. The part where Chihiro said the scandal won’t break us apart, at first I thought he was referring to them as a couple but it actually meant the group. The dynamic between the 3 members of the old group is rather on the border of friendship and beyond that. Well, happy ending, happy me. :3
Idol-kun wa Abakaretai