Juga was a member of the Kōga Clan.
Ginga Densetsu Akame
Juga chased Sadamitsu together Ryōga and Resshi with. He also participated in Iga and Nobukatsu Oda between war, with Kōga Ninjas fought Nobukatsu's side. Later, in 1581, took Juga with Ryōga and Resshi a piece of poisoned meat Itō family yard, apparently intended to poison the at least a part of the family of the young ninja dogs. Ōzaru found the poison in the flesh and Ryōga odor.