User blog comment:B214/Volume 23 discussion blog/@comment-3965848-20170314173953/@comment-31137559-20170314204452

There is basically no logic to it. She can be a local wife for him considering there's really no need for her to become a devil considering she's a vampire and she already has a long lifespan. And like Kunou, she can't become a devil due to her position. She's a representative for the vampires after all. She is on his team though.