Ahhhhh sorry about the late reply, I've been pretty busy lately, but I'm excited to plot with you!
I see Celeste and Candy becoming fast friends because of their similar personalities too! Candy would be easily amused by Celeste's ability to make a duplicate of themselves and could serve as an unusual anchor to her shenanigans. Is there somewhere Celeste tends to hang around? If not, we could have them in a class together.
Additionally, I think Ursa and Kane would be a fun pair. Their personalities are very different, but they are similar species, so there's a whole lot of different ways their relationship could go depending on what you feel like. Ursa would probably want Kane to be one of her minions seeing that he is also part animal or want to teach him how to be tough, I don't see him being a target of her bullying, but she definitely would want to boss him around.
@Sissel