岩井 紗和子

An assistant in the employ of the Shima family, Sawako is currently assigned as Touko's PA and takes care of everything from her secretarial work to managing the family home. She's always cool, calm, and collected.

A woman of few words, she says only what's necessary and tends to keep her expression neutral; while she of course has emotions, they can be hard for other people to figure out.

She previously served the Shima family matriarch, Touko's grandmother, but has now been asked to take care of Touko.

Because of how well the family treats her, she is far more dedicated to Touko than she would be any other employer.

Her hobbies are classical music and obtaining professional qualifications. During her free time, she's usually studying for various exams.

"I am in the employ of the Shima family and have been instructed to take care of the young lady."

Her real name is Yamagishi Niina (山岸 新名).