I decided to practice drawing her hairstyle. And what could be a better reference than a spread with her in the Ufotable’s artbook. It was an interesting experience.
I think that Muzan, hiding in his various incarnations among people in the Taisho era, still crossed paths with his wife. He just felt more comfortable with her… and not bored.
Rei, as a very inquisitive woman, was glad to meet new people, not suspecting that she had known this particular “person” for a very long time… at least in human terms.
She justified the resemblance of “some” people to her husband by saying that perhaps they were distant relatives or someone else. Luckily for her.