|Occupation||Head of the Inoyama Family|
|Alias||Kei (by Kyouichi)|
|Manga Debut||Chapter 23: The Crying Ox and the Cat|
Kenji has short hair parted from the right. Some of his hair sticks up and his bangs come to the left. He has a large cross scar on the right side of his face, going through his eye.
Kenji and Kyouichi are close friends. They often challenge each other in games and joke with each other casually. Kyouichi calls Kenji, "Kei."