Mrs. Niwasaki

Mrs. Niwasaki (庭先, Niwasaki) was the mother of Anna Niwasaki. Anna supposedly became interested in gardening thanks to her, and she occasionally appears as a guardian angel to her daughter to give her advice.

Appearance
Mrs. Niwasaki bears a striking resemblence to her daughter, except she has blonde hair and blue eyes instead of red hair and green eyes. She is shown to wear a long-sleeved white dress and has a set of angel wings and a halo.

Etymology

 * The name Niwasaki means "garden" (庭) (niwa) and "destination" (先) (saki).

Trivia

 * Mrs. Niwasaki appears as a supporting character in Niwasaki Garden, another series by Nekotofu that is also avaiable on Pixiv. The chapter "Mihari and the Drinking Party" retroactively establishes that the series is set in the same universe as Onimai: I'm Now Your Sister! as her daughter Anna appears as a waitress in the chapter.