Otoya Kurenai (A.R. World)

is a resident of the World of Negatives who transforms into .
==History==
===Kamen Rider Decade===
====World of Negatives ====
This version of Otoya shares many characteristics with his other self from the World of Kiva. However, unlike his counterpart, he is a cruel and ruthless dictator who plunged his own world into oppression under the power of his Dark Riders (Orga, Ryuga, Dark Kabuto, and Alternative). He wanted Tsukasa to stay in the Nega World by giving him the K-Touch, but Tsukasa instead kills the other Dark Riders while Otoya was hiding from the fight. At the end of the story arc, Otoya remains as the last and only Dark Rider in the World of Negatives. 
==Abilities==
*Expert Violinist: Otoya was known for his prodigious violin skills.
==Kamen Rider Dark Kiva==
Kamen Rider Dark Kiva
 
;Rider Statistics
*Rider Height: 205 cm
*Rider Weight: 112 kg
;Ability Parameters
*Punching power: 20 t
*Usual kicking power: 35 t
*Maximum jump height: 250 m
*Maximum running speed: 100 m. per 1.2 sec
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. As Dark Kiva, Otoya 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.
Kamen Rider Dark Kiva has the following parts:
* - Dark Kiva's helmet. The bat-like wings on the head are called "Zenon Stabilizers", and spreads the stress on the user's brain by maximizing the demonic power of the user and armor.
* - A depressant called Darkness Tar is applied to the armor to control the demonic power which is amplified by the 3 Demon Emperor Stones to prevent self destruction. The silver stripe in the center is called the . It is an energy conduit which is connected to Kivat-Bat II to control the demonic power.
* - Like Kiva Emperor Form, the stones control the air, water and Earth, and amplifies the strength of the user by ten. The purity is higher than Emperor Form's 3 stones and has stronger amplification powers.
* - The cape. It can neutralize all physical attacks in the world. By swinging the cape, Dark Kiva can generate a blade of darkness to penetrate enemy defenses.
* - The undersuit made of GaoraDoran leather. The material is rare, and it is made using the finest quality 1200 year-old Doran leather, and boasts 3 times the defense of Kiva's armor.
* - The shoulder armor made of polished Bloody Stone, has a blade that is sharp enough to cut like a razor with just a touch. It functions as armor and a powerful weapon in close combat.
* - The bright crimson armor made of Bloody Stone. It is said it is not possible to refine it further, it stores demonic power and combines the power with the user.
* - The black lines on the Bloody Armor. They are restraint bands made of Darkness Tar with the purpose of cooling down the demonic power to protect the user from being overpowered and self destructing as a result.
Appearances: Decade Episode 20-21.
==Equipment==
===Devices ===
*Kivat-Bat the 2nd - King's Kivat partner and servant.
*Dark Kivat Belt - Transformation device that forms when Kivat bites King.
*Fuestles - Whistle-like devices that activate a function, depending on the Fuestle.
==Behind the scenes==
===Portrayal===
Otoya Kurenai is portrayed by , who would later go on to play Kazumi Sawatari in Kamen Rider Build, As Kamen Rider Dark Kiva his suit actor is .
==Notes==
*This version of Otoya shares many differences with his prime counterpart: 
**This Otoya is much more evil than his original counterpart. 
**This Otoya is seemingly unaffected by the repercussions of transforming into Dark Kiva, implying that this Otoya is a Fangire. This is supported by the fact that Otoya's page on Kamen Rider Zukan lists his race as "unknown". 
**This Otoya is unconnected with the denizens of the World of Kiva and is not the father of Wataru, the latter having a Fangire father and a human mother as opposed to the original Wataru Kurenai, who had a Fangire mother and a human father instead. 
==Appearances==
* Kamen Rider Decade
**Episode 20: The Nega-World's Dark Riders
**Episode 21: The Walking All-Rider Album
**Kamen Rider Decade: World Destruction Chapter
==External Links==
*Page on KR Zukan
== Navigation ==
Category:Decade Characters
Category:Decade Riders
Category:Heisei Era Riders
Category:Leader
Category:Villains
Category:Fangire
Category:Dark Riders