Otoya Kurenai

Kamen Rider Series:

Kamen Rider Kiva



First Appearance:

Kamen Rider Kiva Episode 1 : Fate: Wake Up!

Last Appearance:

Kamen Rider Kiva Episode 48 : Finale: The Inheritors of Kiva

Number of Episode Appearances:

47(Kiva) 2(Movies)


Kouhei Takada

Otoya Kurenai (紅 音也,, Kurenai Otoya) is a fictional character appearing in the 1986 storyline of the 2008 Kamen Rider Series Kamen Rider Kiva. Is the first and only human to transform into Kamen Rider Dark Kiva, at the expense of his own life, in an attempt to stop the King.


Otoya is Wataru's father who battles the Fangire menace in 1986, his ideology that "All humans are music" his reason of fighting Fangires was to protect that music. Otoya is a ladies man who retires from being a professional violinist for reasons unknown. It is by accident that he interferes in Yuri's mission and is eventually brought into their group as a result. Though normally a casanova, Otoya is vexed on anything marriage related, things always staying the same, and others getting in his way. He was the first to learn Jiro is actually a Wolfen, although no one believes him until later when Jiro threatened Yuri and reveals himself. He then becomes the second user of the Ixa System when Jiro was exposed. He is also capable of reasoning with a Fangire, as he befriends Ōmura/Frog Fangire and convinces him not to harm others. It seems that he won't destroy Fangire who are non-threatening to humanity. During his battle with the Fangire Race, Otoya falls in love with Maya, the original Queen of the Checkmate Four, resulting in the chain of events that led to him becoming the second Dark Kiva after forming a pact with Kivat-bat the 2nd to take on the Fangires' King. Otoya, along with Wataru, succeed in destroying the King. He would then pay final visits to Yuri, the Arms Monsters, and Otoya before finally dying in Maya's arms after playing her favorite song. He would leave behind the Bloody Rose, a violin that Otoya himself made with Maya's help, for Wataru.

Kamen Rider Dark KivaEdit


Kamen Rider Dark Kiva

Dark Kiva only appears to have one form, similar to that of Kiva Emperor Form in black and red. However, Dark Kiva does not require the use of a being such as Tatsulot to achieve this form, and has no chains on his body as Kiva needs to control his power. As Dark Kiva, the King has access to a unlimited potential of power that is hindered within his successor such as telekinesis and the use of the Kiva insignia as a weapon. As Maya would later explain, the Kiva power cannot be used by a normal human, as usage would ultimately result in death. This would prove to be true, as Otoya had used the Dark Kiva power a total of three times before finally dying due to the strain it put on his body. Shima also mentioned this when Wataru revealed his heritage to him.

Kamen Rider IxaEdit

Otoya transform into Kamen Rider Ixa but only two form, Ixa Save Mode. In the finisher, he transform into Burst Mode.