Mika from Devil Number 4
Mika is technically both male and female, or at least have the option to switch between. She’s watching over Hanna mostly in her female form. She’s seen having long, pale blonde hair.
Her eyes are seemingly pale blue/grey, with long and thick blonde eyelashes. She’s utterly gorgeous and ready to do whatever she can to be protecting Hanna! Of course, that’s only when they’re an angel and not when they’re human.