Ito is the guardian youkai of the Mizunagi shrine which is nearby Tanuma's home when he was still a child. She takes the form of a kind, old lady in order to blend in and watch over the local area.
Ito's human form is that of an elderly woman with grey hair. Her eyes are often closed and she's usually smiling. In her human form, Ito wears a white collared shirt underneath a light pink sweater, with a long brown skirt that reaches below her knees.
When she first interacted with Natsume as a youkai, she maintained her human form but could freely stretch her body and fly in the air.
She helped care for Tanuma when he was young and sick while he was recuperating at his aunt's inn.
- Main article: Kaname Tanuma
- Main article: Takashi Natsume