Eru Jinja

Birthday: June 15

Natsume's twin sister, in the same grade as Chino. She has long blonde hair. She calls Natsume with "chan" suffix. She tried to give Meg a blank check as a thank you for playing with her, and tried to give a large tip to Cocoa and others dressed as maids to make friends, showing a somewhat non-commoner sense of money. She went to a ladies' academy with Natsume and ended up in the same class as Maya. In class, she pretended to be cool for the same reasons as Natsume. Compared to Natsume, she has a brighter personality, is not shy about striking poses in front of people, and has a considerable tolerance for horror.

Maya, Meg, Natsume, and Eru, who went to the ladies' academy, have been named "Bean Sprout Squad" by Rize, from the initials of their names (Mame, Nae).