Oneko

Oneko was the identity assumed by a human woman who lived in Japan in the late 16th and early 17th centuries. The name "Oneko" means "humble cat" in Japanese.

The woman who became known as Oneko was the granddaughter of the leader of a ninja clan from Koga province. Her clan was opposed to Tokugawa Ieyasu. In 1597, the woman's aunt Kiku accompanied a concubine named Oneko on her journey to Fushimi Castle, the home of Torii Mototada, Tokugawa's retainer, with the intention of spying in Mototada's house. Oneko became sick on the road with a lung illness and was taken to a nearby farm. After Oneko died, the members of her escort were killed and the kunoichi (female agent) was substituted for her.

Three years later, in 1600, "Oneko" was pregnant with Mototada's child. Fushimi Castle was soon to be attacked by the army of Ishida Mitsunari. The woman's grandfather sent a party of ninjas to rescue her and recover the information she had gathered. Hikaru Sulu arrived in the middle of the battle, having been sent back in time by the omnipotent being Weyland. Playing the role of the faithful concubine, Oneko helped Sulu defeat the ninjas. He accompanied her back to Fushimi Castle, where he swore allegiance to Mototada.

Some days later, Mototada ordered Sulu to escort Oneko to her uncle's house in Edo. On the journey Oneko and Sulu developed romantic feelings for each other.