Ichiro Inoue was the older brother of Hotoke Inoue, making him the uncle of the Inoue siblings.
Ichiro was a tall, handsome young man with black hair and green eyes.
Ichiro was described by his brother to be kind and thoughtful to others. Hotoke remembered him as a kind big brother since the latter had often looked after the former.
Ichiro was the born son of the Inoue Household and was its heir.
Hotoke was Ichiro's younger brother. They had a close relationship and were often seen together.
Mr. Inoue was Ichiro's father.
Mrs. Inoue was Ichiro's mother.
According to Hotoke, Ichiro was a very skilled demon hunter.
- Ichiro's name means "First son".
- It'a revealed that Ichiro was a hunter.