Ryoko Sugihara

She is Kōhei Sugihara's mother. Ryoko owns her own business where she gives cooking classes and is an author.

Appearance
In the manga, she appears to be of a young age even though later on she describes herself to be an obasan (aunt or older woman). She has medium length hair.

Personality
She seems to be a doting mother this is shown when she asks Taichi Sagawa to watch over her son. Plus, when the producers for her documentary try to take advantage of Kōhei's disability she quickly kicks them out. Moreover, she's very passionate about her cooking.

Relationships

 * Son: Kōhei Sugihara