Kaede (かえで) is a female ninja from Onimusha: Warlords. She fought the demons with Samanosuke Akechi, and searched for his whereabouts after the battle at Gifu Castle. Kaede will throw herself into the heat of battle no matter what the risk to life and limb. She is playable at one point in the game. She was voiced by Nao Takamori in the Japanese version of Onimusha: Warlords and by Ayumi Iizuka in the English version. In the Japanese version of Onimusha Blade Warriors she was voiced by Nao Takamori and by Jennifer Hale in the English version.
When Samanosuke turned twenty, he decided to see the world, traveling to Asia. As he traveled over Japan and the Far East, he came across a female ninja named Kaede, who was a member of the Iga ninja clan. Originally, she was sent to assassinate Samanosuke for reasons unknown, but she did not kill him for reasons that were also unknown, instead deciding to join him on his travels as his loyal partner and confidante for over the next four years.
During those years, both developed feelings for each other. When Samanosuke disappeared, Kaede spent the next ten years looking for him until she found him (as seen in Blade Warriors). Upon Samanosuke's return somewhere in 1571 (months after the events in Onimusha 2: Samurai's Destiny) Samanosuke and Kaede return to assist his uncle, Mitsuhide Akechi, in absolute secrecy. For the next eleven years Samanosuke and Kaede travel all over Japan, slaying Genma wherever they may find them.
It’s unknown how or under what circumstances, but Kaede ended up fighting Gargant in a battle at Yamazaki Province and was killed. Samanosuke sought Gargant to avenge her death.
Kaede is mentioned by Samanosuke in Onimusha: Dawn of Dreams when he says, "We should put an end to this madness... for Kaede."