Iruma Kazuyo

Obachan from the neighborhood whom the protagonist has been indebted to since childhood. Veteran nurse and also mother of protagonist's best friend Takuto. She has good reputation from patients because of her friendly and caring personality. Since she is married with a grown-up child, she is no longer conscious of herself as a woman. Because of that, she always has strong and straightforward image.

Instead of parents who are busy with work, she have been taking care of the protagonist since he was a child, and she loves him like her own son. Because she only see the protagonist as a child, she sometimes carelessly hugs and teases him.

Powerful Obachan is busy with work and housework every day.