Baya (real name: Koyuki Ichikawa) is the elderly Nanny/maid working with the Fujiwara family. She's raised Reiko since she was a child and while not related to them directly, she is seen as a grandmother to everyone. She helps Hazuki and gived her advice when she can. Baya also has a few violent tendencies and can easily intimidate anyone with her surprising greetings. If something bad is happening she will bust out a giant ninja stick and go into battle. Though always stopped by someone out of concern she may harm herself.