Umeko "Ninjara" Koroji was a Female Ninja who is actually an unearthly being from an Island in the Pacific Ocean.
In her early twenties, Ninjara left her small home and found refuge with the Teenage Mutant Ninja Turtles. Following a short lived relationship with Raphael, she left and built a home in another part of the sewers. From here, she could keep watch on the entire city and warn the turtles incase of trouble. Shortly after a scuffle with the Foot, Ninjara resumed her relationship with Raphael. By then, they had both fallen in love with each other. She disappeared in a battle in Shredder's Skyscraper and was presumed dead.but in reality, she was actually captured by the Decepticon Shockwave.