For game players: Is Sumire involved into this further on? I know I7 is more for the ladies, but it'd be interesting to have some female celebs other than Tsugumi in the mix... Ryu got Honey Potted.
Spoilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not really. She's mentioned after this but that's all. She didn't get her own sprite so that goes to show she was never meant to stay as a cast member. However, the only one is Anesagi and Aya. Which all three of them do have love interests. Tsumugi has Gaku and maybe Riku, Aya has Haruka and Anesagi has a deep interest in Nagi. There was another female character but its Momo's sister. She is mostly in the re:vale manga/novel.
Tbh, I really hope they introduce female characters in case Aya debuts. Her seiyuu has participated in idol franchises already, so maybe she could sing.