Tetsu is a black Kishu Inu with black eyes.
Kōgetsu was born in 1579, only a few days before Nobukatsu Oda's attack on Iga Province.
He is trained as a Ganin by Taichi and Ōzaru alongside his brothers but is killed by the Koga Ganin in his first major battle.
Tetsu was born in 1579, only a few days before Nobukatsu Oda's attack on Iga Province. Tetsu is trained as a Ganin alongside his brothers by Taichi and Ōzaru.
In his first battle, two of his brothers are killed by Koga Ganins. Later, after he is given use of a sword, he and Kōgetsu are killed by the Kogas, along with their father.
- He bears a striking resemblance to Rigel from Ginga: The Last Wars.