....I had a feeling that was Rumia, but I didn't really check.
Thanks for pointing it out. I'll put that on the backlog of things to fix.
Yeah, what tipped me off was the lack of a hat, different ribbon, different hair, and lack of wings (and different clothes; while characters are drawn with alternate costumes, they rarely don another character's wardrobe entirely)

Well, that and the fact that Flan has a lot of good "Combat" pictures involving Laevateinn and/or beam/bullet spam. I actually did Remi and Flan profiles on my copy, although my pictures are incomplete (and they're almost as overpowered as they are in Touhou ...).
Plus, even if I made them their true age, the game would revert it.
Yeah, once you get over a certain age you have to either go "Unknown" (in which case, if you feel like making the age known, you can just put it in the profile) or deal with the game reverting it.
I also think that girls die eventually of old age since they aren't exactly demons
Can they? I mean, I've never had a game go on for the ... like, 60+ years it would take for some of them to reach 99, but even then Lolita Wands and Elixirs of Youth aren't that extravagantly rare. (Or I've just been extremely lucky)