|Physical and Vital Statistics|
|Manga||Volume 1, Chapter 3.5|
She's easy going and is generally cheerful, playing along with Yūki's weird perverted ideas.
Despite being an assistant, Rinna knows nothing about drawing manga, as she applied to the recruitment and Mihari hired her due to Yūki wanting someone who is cute. Rinna greatly admires Yūki and his work, being one of his fans.