Kōji is a minor character of Ginga Densetsu Weed: Orion.
He is a wild dog.
Kōji was one of them who responded to Masamune Kurohabaki's invitation to gather in the Ōu mountains. When Izō and his brothers come to the mountains with the intention of killing Masamune, Kōji and other wild dogs try to stop them without success. As the battle begins, Kōji and others look further afield.