Isoka

Isoka is an anime only female Marine of significant rank in the filler Rainbow Mist Arc. She is first seen on the same ship with another marine, who was eventually revealed to be Rapanui Pasqua.

History
Isoka was the only female member of the Pumpkin Pirates. Along with Rapanui Pasqua, Rongo, Pukau and Akibi, managed to momentarily stop Wetton from pillaging Ruluka fifty years, they all end up in Ape's Concert through the Rainbow Mist along with Ian. They left Henzo behind.

She was then trapped in the Rainbow Mist, until it broke down. Afterwards, she was somehow sent back through time into a period, where she and the others were then able to join the Marines.

Years later after joining the marines, she and the rest of her friends met the Straw Hat Pirates and an aging Henzo and, with their help, they managed to stop Wetton from taking over Ape's Concert and Isoka returned home along with her friends.