Umigame Maniwa (真庭 海亀, Maniwa Umigame) is the leader of the Fish Squad.
- Nickname: Longevity Umigame (長寿の海亀, Chōju no Umigame)
As his name suggests, he wears a turtle-like uniform.
He was on a meeting with the surviving members of Maniwani Corps.
He was on a meeting of Maniwani Corps.
He fought Emonzaemon Sōda and was killed.
Swordsmanship Specialist: He wields a rapier, a western sword. He was able to break Emonzaemon's dual katanas.