Wataru

is a young boy who transforms into . 
He is the World of Kiva counterpart of Wataru Kurenai.
==History==
He is a twelve-year-old half-Fangire boy, having the ability to transform into with the aid of Kivat-Bat the 3rd. Referred to as the by his servants, Wataru is reluctant to claim the title of of the Fangires. He finds the overseeing of the ceasefire between humans and Fangires a very troublesome and unnerving task.
Wataru first meets Tsukasa and Natsumi at Kurenai Manor where he is playing his violin. Later during a misunderstanding, Wataru transforms into Kiva to fight Decade, who he believes is the devil. Yusuke arrives and clears up the misunderstanding, offering his aid to Wataru and his task of serving as King. The next day, Wataru is confronted by the Beetle Fangire who intends to become the new King. The Beetle Fangire successfully claims Kivat as his own in the ensuing battle and proceeds to absorb the Arms Monsters into his Fangire armor, allowing him to become Kiva DoGaBaKi Form. After listening to Tsukasa make a speech about his ideals for the coexistence of humans and Fangire, Wataru takes back the power of Kiva, teaming with Decade to fight the Beetle Fangire. With a combination attack of Decade's Dimension Kick and Kiva's Wake Up (Darkness Moon Break), the Riders defeat the Beetle Fangire, who is later revealed to be Wataru's father, the former King.
He later appears in the World of the Rider War as his reality is absorbed into it. Leading the Riders of his world, Wataru refuses to listen to Tsukasa and Yusuke in uniting all Riders to defeat Dai-Shocker and stop the convergence of the worlds, while in grief over IXA's death. He even went so far to allow the Queen of the Fangires, Yuki, to marry Apollogeist for the World of Kiva to have an advantage over the other A.R. Worlds, but later changes his mind when the Fangire betrayed them to Dai-Shocker. After defeating Super Apollogeist, the convergence of the worlds continues and the World of Kiva and Wataru disappear along with the World of Hibiki and Asumu (Decade) after the destruction of Super Apollogeist by Decade and Diend.
However, in Kamen Rider × Kamen Rider W & Decade: Movie War 2010, he is resurrected after Tsukasa has been killed by Kamen Rider Kiva-la. He later appears alongside the Riders of the Nine Worlds to revive Tsukasa and help him battle Super Shocker, assuming Emperor Form with the help of Decade's K-Touch and later uses Castle Doran to fight the Super Crisis Fortress.
===Later appearances===
Movie War 2010 currently remains the last appearance of Wataru. The Kiva that appears in OOO, Den-O, All Riders: Let's Go Kamen Riders and Kamen Rider × Super Sentai: Super Hero Taisen is the original Kiva, Wataru Kurenai.
== Personality ==
Unlike the original Wataru who was humble, polite and mature, this Wataru was (initially) an immature, spoiled brat who had trouble respecting his elders. He was also quite cocky of his status thus making his personality more resembling towards Taiga. Like Taiga however, this Wataru was actually good deep down and tried to help others as the ruler of Fangires. Although he also did some questionable acts, this Wataru also did the right thing in the end (again like Taiga) as Kiva.
==Kamen Rider Kiva==
Just like the original Kamen Rider Kiva had various forms into which he could change into for different powers and specialties, the Kiva appearing in Decade has this same ability. The forms Wataru has transformed into are , , , . Kamen Rider Decade's Final Form Ride allows Kiva to change into the .
==Equipment==
===Devices===
*Kivat-Bat the 3rd - Wataru's Kivat partner.
*Demon Imperial Dragon Tatsulot - Wataru's second partner and the catalyst of allowing Kiva to assume Emperor Form. Only shown when Decade accessed his Emperor Form via K-Touch.
*Kivat Belt - Transformation device that forms when Kivat bites Wataru.
*Fuestles - Whistle-like devices that activate a function, depending on the Fuestle.
===Weapons===
*Demon-Beast Sword Garulu Saber - Kiva's form-changing weapon that turns him into Garulu Form. Lost after Garulu absorbed/killed by Beetle Fangire.
*Demon Sea Gun Bashaa Magnum - Kiva's form-changing weapon that turns him into Bassha Form. Lost after Bashaa absorbed/killed by Beetle Fangire.
*Demon Iron Hammer Dogga Hammer - Kiva's form-changing weapon that turns him into Dogga Form. Lost after Dogga absorbed/killed by Beetle Fangire.
*Zanvat Sword - Kiva's personal weapon, used in place after the Arms Monsters' demise.
===Vehicles===
*Castle Doran - Kiva's Doran partner that is also a base.
==Notes==
*Compared to the original world Kiva, this one is the first to be a child successor of the Kiva bloodline.
**It should be noted though, that Otoya transformed into Dark Kiva three times before Wataru was born.
*Similar to Asumu (Decade), Wataru grows to the size of an adult when transformed into his Rider form, although his voice does not change.
*Unlike the original Wataru who loved his father Otoya and was loved in return, this Wataru didn`t have a stable relationship with his father and was partially the reason for his death.
**Also unlike the original Wataru, this Wataru was respected by other Fangires from the start.
*Thanks to the Beetle Fangire, this Kiva has lost a large portion of his powers, since his own Arm Monsters had died by being absorbed by the Fangire.
==Appearances==
* Kamen Rider Decade
**Episode 4: Second Movement ♬ Prince Kiva
**Episode 5: The Biting King's Qualifications
**Episode 30: Rider War: Prologue
**Episode 31: The Destroyer of Worlds
* Kamen Rider × Kamen Rider W & Decade: Movie War 2010
**Kamen Rider Decade: Final Chapter
**Movie War 2010
==References==
==External links==
*Kamen Rider Zukan page on Wataru.
==Navigation==
Category:Decade Characters
Category:Heisei Era Riders
Category:Nine Heisei Riders
Category:Fangire
Category:Decade Riders
Category:Heroes
Category:Relatives
Category:Non-human Riders
Category:Revived Riders