canon
♮Saya (
hematophagy) Diva's twin sister. Diva both loves and hates Saya as she both loves and hates herself. Saya is her twin, her mirror, her other half, and they're bound by blood (Diva puts a lot of weight on the strength of blood). However, Saya also had what Diva didn't: a warm home and a loving family--whereas Diva had a blanket, a tower, and two scientists who saw her as nothing more than a specimen. Diva wants to live with her sister, but she also wants to kill her. tl;dr it's complicated
♮Solomon (
favoritetraitor) Diva's chevalier, a sub-class of chiroptera created by feeding a queen's blood to a human. As her chevalier, Solomon is her protector, her guardian, and her plaything. Of course, that was before he broke all the rules by falling in love with Saya.
♮Hagi (
symphoniae) Saya's chevalier. According to chiropteran biology, Diva's bridegroom (a queen can only become pregnant by her sister's chevalier; this ensures the purity of the species. Yeah, don't ask). Doesn't much appeal or matter to Diva, although there is a part of her that resents Hagi for taking her sister's companionship.
pan-fandom
♮TBA