Keisuke Nago

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 is an elite member of the Wonderful Blue Sky Organization who transforms into .
==History==
Keisuke Nago encounters Wataru when he is after a German fugitive, gaining the young man's praise for his confident exterior. When he learns Kiva has returned and that Shima had known all along, he demands permission to take Kiva out with the Ixa System. However, Shima assigns him the task of keeping Megumi safe, deciding to use that to have Kiva come to him and kill him. However, when Megumi threatens to file a restraining order, Nago uses Wataru to do the job for him instead. When he finally faces Kiva, Nago is about to become Ixa without permission until the Sheep Fangire kidnaps Megumi in the confusion. He is currently unaware that the person he is mentoring, Wataru, is the individual he is trying to kill. When encountering Kiva, Wataru manages to evade him, not engaging in any form of combat against the person he looks up to. However, when he was ultimately left with no choice, Wataru reluctantly transforms into Kiva and soundly defeats Ixa. Since then, Nago becomes mentally unstable to the point of attacking criminals without mercy while proclaiming that the Ixa System lost, not himself. Attempting to snap Nago back to his usual self, Shima presents him the Powerd Ixer, which is completed by the time the Rook fully reawakens. Unfortunately, Nago's encounter with the Seastar Fangire only drove Nago even more insane as he became obsessed with obtaining one of the Fangire's buttons as a memento of defeating him. Nago eventually got the button and added it to his collection, seemingly snapping back to reality.
After unsuccessfully trying to find out who Kiva really is by way of a fortune teller Kengo Eritate knew, Nago scolds Kengo for calling him 'old man' repeatedly (even though there is only a year's difference between them in age) and fights with Megumi against the Ladybug Fangire, with him and Kengo being kidnapped in the process before he shatters the Ladybug Fangire, forced to work with Kiva to destroy the Six Pillars Sabbath born from the remains. Since the Ladybug Fangire incident, Nago gains the admiration of Kengo who desires to be his apprentice to perfect his musical skills. While eavesdropping on a conversation between Megumi and Shima regarding his erratic behavior, Nago finds out that a new upgrade being developed for the Ixa System, and is even more pleased that he will retain the Ixa System even after losing it briefly to Ryo Itoya, the Spider Fangire. Though he came close to being removed as Ixa's user, Nago succeeds in fooling Shima to let him stay as the user by admitting that he was flawed, becoming the first to use the upgraded Ixa System and its stronger form, Rising Ixa.
However, a man named Tanahashi uses his connections with the police to arrest all Wonderful Blue Sky organization members for the previous Ixa disregarding him in a Fangire attack and put him in the hospital, leaving him in a coma and unable to finish a painting of Maya he was working on. With Nago on the run, he encounters Jiro who him shows to Castle Doran's Time Door to give him the means to travel back in time. In 1986, he encounters Otoya and Yuri, learning that Otoya is the previous user of the Ixa System and tries to get the Ixa Knuckle from him. Nago then encounters Maya and quickly falls in love with her, though denies it, though he failed to her question about human love and gives her his good luck charm, his very first button as a bounty hunter, with a diamond-encrusted crown on one side. After learning that she was actually a Fangire, Nago manages to steal the Ixa Knuckle from Otoya and alter time by allowing Tanahashi to get away from the Cicada Fangire without injury. Once back in his time, after aiding Kiva in his fight against the Crab and Cicaida Fangires, Nago learns that the button he handed to Maya in the past now belongs to Wataru, who informs him that his mother gave it to him as a child. The revelation ultimately led Nago to learn that Wataru and Kiva are one and the same, seeing Kiva is not as much of a threat as he was told and deciding to take Wataru as an apprentice to ensure that while not caring about Kengo's feelings. Since then, Nago has been making regular visits to Wataru's house and joining him in his baths to advise the "right course" to take. However, Nago soon sees the consequences of his past actions when Kengo returns, trained by Shima to be a more suited user of the Ixa System when Nago gets injured in his fight against the Horsefly Fangire. Since losing the Ixa System, Nago made various attempts to either spite Kengo for taking over as Ixa or to help him, with Kengo thwarting each attempt at every turn.
Nago helps Wataru formally reveal his identity as Kiva to the rest of the organization, but also informs them that he is not a threat. However, he becomes stunned when Wataru reveals that he is half-Fangire. When Shima orders the members to eliminate Kiva, Nago pretends to follow orders and shoots near Kengo's (as Ixa) feet instead to delay his battle with Kiva. However, the battle becomes more intense when Taiga has Bishop awaken Wataru's Fangire nature until Nago calms him down. Although he was attacked by Kiva, he still trusts him, especially when he defends Kiva in front of Shima. After hearing that Wataru has become a recluse again, Nago desperately tries to get Wataru out, from coaxing him at the gate to even breaking into his house. However, when he calls Wataru to help Kengo, who is fighting the Seamoon Fangire and losing when Bishop arrives, Wataru informs him that this is his last battle. Realizing that Wataru is serious, Nago takes the Ixa Knuckle to decides to fight the Seamoon Fangire in Wataru's place until he is simultaneously attacked by both the Swallowtail Fangire and Saga. After being saved by Kengo, Nago manages to defeat the Swallowtail Fangire before Wataru returned as Kiva.
After Shima's apparent death, Nago attempts to succeed his leader as the president of the Wonderful Blue Sky Organization, wishing to become stronger as a manifestation of Shima's will. He manages to defeat the Swallowtail Fangire again as a display of his newfound strength. However, while trying to protect Megumi from the revived Fangire, Bishop manages to seriously injure him. The blow was severe enough to cause Nago to gradually lose his eyesight. Due to this handicap, Nago considered quitting the Blue Sky Organization if not for Megumi intervening and encouraging him to continue as Ixa. He realizes his true feelings for Megumi as he finally defeats the Swallowtail Fangire for good and regains his eyesight. Days after the final battle, Nago marries Megumi prior to joining Wataru in a battle against a mysterious evil from the future.
==Other Events==
===Kamen Rider Kiva: You Can Also be Kiva===
An unknown boy, with the aim of being Kiva, enters Café mald'amour and is instructed by Nago, Otoya, and Wataru to start an exercise session called IXAsice. After finishing the routine, with Otoya and Wataru somewhat exhausted, Nago himself explains to the boy that the training is used to strengthen him while Otoya gives a different and somewhat romantic method, while Nago gives a counter. Wataru explains to the boy about his method while both Nago and Otoya are attentive until the Bloody Rose detects a Fangire.
He and Otoya appears as support to help the boy, who became temporarily Kiva, against the Rat Fangire. He as Rising Ixa easily defeated an army of Rat Fangire using Final Rising Blast to later witness the boy as Kiva Dogabaki Emperor Form execute DoGaBaKi Emperor Break against the remaining three Rat Fangires, destroying it. They later returned to the café as Nago, as well as Wataru and Otoya, congratulate the boy for how he played his role as Kiva while bidding their farewell. 
===King of Vampire===
The story follows the life of the characters following the finale while expanding on other instances in the history of the 1986 storyline.
At Nago and Megumi’s wedding, Kivat’s sister, Kiva-la, suddenly arrives warning them that the Lion Fangire has become a giant Six Pillars Sabbath. As Wataru transforms into Kiva Emperor, Nago to Ixa Rising, and Taiga to Dark Kiva, Kiva-la agrees to help Megumi fight, transforming herself into Kamen Rider Kiva-la to fight the Six Pillars Sabbath.
===Kamen Rider Decade===
====Rider War====
In the dream of Natsumi Hikari, Kamen Rider Ixa appears with other Kamen Riders commanded by Wataru Kurenai, but all are 
murdered by Decade in the first episode of Kamen Rider Decade. The dream concludes with Decade as the only surviving Rider in the Rider War. 
====The Grandma Way of Taste====
Kamen Rider Ixa is summoned among Kamen Rider Psyga by Diend to fight Kabuto, with Diend attempting to acquire Kabuto's Clock Up system. Ixa, using Ixa Calibur Gun Mode and later use Ixa Calibur Sword Mode, attempts to defeat Kabuto but he, along with Psyga, are easily defeated by his opponent.
====All Riders vs. Dai-Shocker====
Ixa participated in the Rider Battle tournament, where he fought against Skyrider. However, he did not appear alongside Kiva when all Riders came to help Decade and Diend defeat Dai-Shocker. 
====The Destroyer of Worlds====
In the special version of episode 31, Kamen Rider Ixa is seen as one of the many Kamen Riders who fought in the Rider War against Decade and were all destroyed. They were presumably restored after the destruction (and subsequent revival) of Decade at the end of the Rider War and the worlds were restored. 
===OOO, Den-O, All Riders: Let's Go Kamen Riders===
Kamen Rider Ixa was part of a group of reinforcement riders led by Akira Date/Kamen Rider Birth to aid the primary riders in defeating the Rock Great Leader. All the Kamen Riders got on their bikes and performed the All Rider Break attack which destroyed the Great Leader. 
===Chou Super Hero Taisen===
===Kamen Rider Heisei Generations Forever===
Kamen Rider IXA appears as a toy, when Sento Kiryu and Sougo Tokiwa they find Ataru Hisanagahe brings them to his room which is filled with Kamen Rider memorabilia, with Sougo and Sento stunned to see toys of themselves. Ataru reveals that Kamen Riders are fictional.   
===Kamen Rider Decade: All Riders Super Spin-off===
====That One! Jiro Okamoto: Final Blow Diet!!====
Kamen Rider IXA appears with Leangle, Caucasus, Ouja, and Black, cited as examples of the costumes used by Eitoku. Later in the beginning of the questionnaire, Kenichi asks which Rider Jiro is referring to five Riders and it is finally discovered that it is Black.
===OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~===
====Type4. - Quietly Listen! The Tragedy of the 20th Anniversary Rider!!====
Kamen Rider Rising IXA appears with Kabuto Hyper Form, Kiva Emperor, and Exceed Gills. According to Sieg, Rising IXA is considered a perfect material for marriage.
===Kamen Rider Wizard in Magica Land===
====Where is White Wizard====
Kamen Rider IXA and Fourze appears as a toy by Medusa, before Sora Takigawa mentioned his typical pre-battle catchphrase.  
===Kiva Army Warlord===
The leads Kamen Rider Bujin Kiva into battle against the Fourze Army. 
The Kiva Army Warlord is portrayed by , who previously portrayed Keisuke Nago/Kamen Rider Ixa in Kamen Rider Kiva.
==Video Game Appearances==
===Kamen Rider Battle: Ganbaride===
Kamen Rider IXA Save mode, Burst mode, and Rising mode appears as a playable character in this video game.
g8914414.jpg|Kamen Rider IXA Save mode card
51MH9D5+CqL.jpg|Kamen Rider IXA Burst mode card
g6687342.jpg|Kamen Rider IXA Rising mode card
===Kamen Rider Battle: Ganbarizing===
Kamen Rider IXA alongside Burst and Rising mode are playable characters in Kamen Rider Battle Ganbarizing.
Gabarisingixa.jpg|Kamen Rider IXA Save mode in Kamen Rider Battle: Ganbarizing
g3566384.jpg|Kamen Rider IXA Burst mode in Kamen Rider Battle: Ganbarizing
risin ixa.JPG|Kamen Rider IXA Rising mode in Kamen Rider Battle: Ganbarizing
===Kamen Rider Riderbout===
Kamen Rider Ixa Save ,Burst and Rising Mode appears as a playable character with the other Heisei and Showa Kamen Riders in Kamen Rider Riderbout.
tumblr_nnjk3nJM5B1toeji8o1_1280.jpg|Ixa Save Mode as seen in Kamen Rider Riderbout
tumblr_o6fa00BEkz1toeji8o1_1280.jpg|Ixa Burst Mode as seen in Kamen Rider Riderbout
tumblr_nk0odeG9Ug1toeji8o1_1280.jpg|Ixa Rising Mode as seen in Kamen Rider Riderbout
===Kamen Rider: Battride War series===
====Kamen Rider: Battride War====
thumb|Ixa in Battride War.
Kamen Rider IXA appears as a Second Rider who is unplayable in the video game Kamen Rider: Battride War, with Keisuke Kato reprising his role as Nago. Ixa can be seen aiding the player in Chronicle Mode in some levels.
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====Kamen Rider: Battride War II====
Kamen Rider IXA return in the video game Kamen Rider: Battride War II. Ixa can be seen aiding the player in Chronicle Mode in some levels and can be chosen as a support character.
1938328593_ef2c73ad_044.jpg|Kiva Emperor and IXA
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====Kamen Rider: Battride War Genesis====
Kamen Rider Ixa return and made his playable debut in Kamen Rider: Battride War Genesis, with Keisuke Kato reprising his role as Nago with new voice clips relating to Ixa's first playable appearance. Ixa's primary gimmick is a "heat gauge" that builds up as long as Burst Mode is active; he can still transform from Save Mode to Burst Mode when the "heat gauge" was still decreasing; if it fills up completely, the suit overheats, leaving Ixa immobilized and vulnerable temporarily and can't transform back to Burst Mode until the heat gauge finally reaches 0 for Ixa to transform back to Burst Mode. To prevent this, the player must periodically change to Save Mode, which has lower stats but gradually vents the built-up heat. Ixa's final form is Rising Ixa, and his Super Move is the Final Rising Blast.
Kamen Rider IXA intro in Battride War Genesis.png
Kamen Rider IXA Rising Form in Battride War Genesis.png
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===Kamen Rider Batton-Line===
Kamen Rider Ixa and his two forms appear as a playable character in Kamen Rider Batton-Line among other Riders in the game.
IxasaveFormbattonline.PNG|Ixa Save Mode in Batton-Line
372be461569c88c4.jpg|Ixa Burst Mode in Batton-Line
e7918bcfb658564f.jpg|Ixa Rising Mode in Batton-Line
===Kamen Rider Transcend Heroes===
Kamen Rider Ixa and his forms appears as a playable character with others Kamen Riders in the video game, performing Ixa's finishers against his enemies in Kamen Rider Transcend Heroes.
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===Kamen Rider Buttobasoul===
Kamen Rider Ixa is a playable character among all his modes in Kamen Rider Buttobasoul.
Imgrc0065125084.jpg|Kamen Rider Ixa Save Mode Medal
Imgrc0065125086.jpg|Kamen Rider Ixa Burst Mode Medal
Imgrc0065147403.jpg|Kamen Rider Rising Ixa Rising mode medal
===Battle Spirits===
Kamen Rider IXA appears with other Kamen Riders and Monsters in Battle Spirits.
Ixa_save.png|Kamen Rider IXA Save Mode Battle Spirits card
10026.jpg|Kamen Rider IXA Burst mode battle spirits card
CB06-035.png|Kamen Rider IXA Rising mode Battle Spirits card
===Kamen Rider City Wars===
Kamen Rider Ixa Burst Mode is a playable character alongside the other Kamen Riders in Kamen Rider City Wars.
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==Novel Appearances==
===Kamen Rider Kiva (novel)===
In the novel, which is a reimagination of the TV series, Nago never befriends Wataru, who ends up as the novel's final villain. He dies after his Rider Kick collides with Wataru's Fangire kick.
==Personality==
Nago is an elite member of the Wonderful Blue Sky Organization and the current user of the Ixa System, working part-time as a bounty hunter by capturing criminals. Once successful, Nago takes a button from them as a memento, the latter being a form of ritual for him. Said ritual stems from Nago's final confrontation with his father, an event that still traumatizes Nago to this day. For each capture he makes as a bounty hunter, Nago donates the entire rewards towards orphans, having no real financial need for it. 
Despite appearing to be a noble figure, Nago actually has a very warped and selfish sense of justice, something which others have regularly pointed out. Notably, in the past, Nago caused his own father to commit suicide, solely from a mistake that the latter made on an official document. Likewise, when first fighting as Ixa, Nago regularly showed a sick sense of pleasure at killing Fangires, caring little for their sense of morality. 
To an almost zealous degree, Nago firmly believes in his idea of "humanity's full potential", something that fuels his narcissistic viewpoint. Thus, he regularly looks down upon meek individuals such as Wataru, as they are everything his ideology is against. Furthermore, Nago also has a distaste for pleasures such as music, since he feels it hinders said potential.
Unlike Megumi, Nago continued to see Kamen Rider Kiva as a threat, despite all evidence to the contrary. When believing that he had successfully defeated Kiva, Nago was overjoyed, stating his intent to exterminate the Fangire race and rule the entire world. Soon afterwards though, Nago learnt that Kiva survived, suffering his first real defeat in a rematch. Unable to fathom that he had lost in their fight, Nago was overcome with angst, growing mad with time.
Once sent to the past by Jiro however, Nago was drastically affected in personality by Maya and Otoya, the latter helping him significantly mellow out in attitude. Evidently, even when learning of Wataru's identity as Kiva, Nago did not react in a negative manner, instead deciding to help him as a mentor. 
When Nago transforms to Ixa, he usually says, .
==Abilities==
* Superhuman Strength: Despite supposedly being a normal human, Nago somehow possesses a degree of superhuman strength, capable of stopping a moving car with one footUnfinished: Daddy Fight , an act that would mathematically require 140 tons of leg strength. This strength has allowed him to tackle Fangires without IXA's powers, 
*Skilled Combatant: To be added
==Kamen Rider Ixa==
The IXA system, an acronym for Intercept X Attacker, is a Rider System developed for fighting Fangire. It has been continuously updated since 1986, with Nago using Version X for the majority of the series until it is upgraded to Version XI, allowing access to Rising Mode.
Both Ver.X and Ver.XI have a golden projection of the Ixa System instead of the original's bronze color. A total of six Fuestles are available to the user as well as a new weapon: Ixa Calibur. It does not exhaust the user's body like the prototype, though any other side effects are still unknown.
==Equipment==
===Devices===
*Ixa Belt: Transformation belt
*Ixa Knuckle: Transformation device
*Fuestles: Whistle-like devices that activate a function, depending on the Fuestle.
===Weapons===
*Ixa Calibur: Personal weapon
*Ixariser: Rising Ixa's primary weapon
*Demon-Beast Sword Garulu Saber : Temporary weapon
===Vehicles===
*Powerd Ixer: Ixa's mechanical dragon
*Ixalion: Ixa's Rider Machine
==Legend Rider Devices==
==Relationships==
===Family===
Megumi Aso.png|Megumi Aso (Wife)
Yuri Aso.png|Yuri Aso (Mother-in-Law - deceased)
*Megumi Aso: Nago's wife. At first he was at odds with Megumi because she disliked and was indeed jealous of Nago's overconfidence. But after she aided Nago's final battle against Bishop, when he suffered near blindness. Megumi was the person he first saw after his blindness disappeared and the two became closer, eventually getting married.
*Yuri Aso: Mother-in-Law
*Mitsuhide Aso: Brother-in-Law
*Akane Aso: Grandmother-in-Law
===Allies===
*Wataru Kurenai/Kamen Rider Kiva: Nago initially saw Wataru as an unremarkable individual, being annoyed with his timid attitude. When Wataru asked Nago to become his mentor, Nago agreed solely as a means to fuel his narcissism, feeling no real sense of obligation in doing so. Evidently, upon witnessing Wataru defend the Frog Fangire, Nago expressed his disgust at him, a matter worsened by Wataru's inability to properly explain the situation. Though eventually coming to forgive Wataru, Nago still treated him with open distain, if mostly due to insensitivity. Once learning of Wataru's identity as Kamen Rider Kiva however, Nago became more respectful in turn; having changed significantly from his adventure in 1986. Even when ordered by Mamoru to eliminate Wataru, Nago ultimately disobeyed his orders, instead vouching for Wataru as a friend. 
*Kengo Eritate/Kamen Rider IXA (IV): Nago's first encounter with Kengo did not go well due to their clashing personalities. Yet, upon witnessing Nago's skills as a warrior, Kengo decided to become his pupil, which Nago half-heartedly accepted. Since this was done on a whim however, Nago later replaced Kengo with Wataru, expressing interest in the latter's powers as Kamen Rider Kiva. Understandably, Kengo resented this cruel action, causing him to enlist as a new member of the Wonderful Blue Sky Organization. In a karmic twist, Nago later became injured in battle, with Kengo replacing him as IXA. Their positions having switched, Kengo constantly antagonized Nago, the latter worsening the situation from his usual antics. After an incident with Wataru though, Kengo and Nago finally stopped their feud, regaining some measure of respect towards each other.
*Mamoru Shima: While respecting Mamoru as his superior, Nago constantly troubled him with acts of recklessness. In spite of this, Mamoru continued to look out for Nago, entrusting him to use the IXA system in a responsible manner. Notably, despite his selfishness, Nago rarely ever outright disobeys Mamoru's commands, viewing him as something of a father-figure. Mamoru in turn, ultimately came to deem Nago as a worthy successor for leader of the Wonderful Blue Sky Organization, having recognized his growth as an individual.
*Maya: During the incident of W.A.O. framing, Nago went to the past and accidentally met Maya. Maya was responsible to change Nago into better, including understanding music. Unfortunately for Nago, despite Maya became his first love, he was shocked to discover Maya is in fact, a Fangire.
*Otoya Kurenai: to be added
==Portrayal==
Keisuke Nago is portrayed by , who later portrayed the  in Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle. As Kamen Rider Ixa, his suit actor is . During his brief appearance in Kamen Rider Decade, IXA was voiced by an unknown voice actor. In All Riders vs. Dai-Shocker, Ixa was voiced by an unidentified voice actor, while his suit actor was once again Jiro Okamoto.
==Notes==
*Nago is the first Kamen Rider to be married, which is later followed by Ryu Terui and Shinnosuke Tomari.
*Nago and his actor Keisuke Kato share the same given name, though only phonetically and not by kanji.
==Appearances==
==See Also==
*Kamen Rider Ixa (A.R. World) - User of the Kamen Rider Ixa powers in Kamen Rider Decade.
==References==
==External Link==
#"TV Asahi's page for the Ixamet". http://www.tv-asahi.co.jp/kiva/rider/ixamet.html. Retrieved 2009-06-27.
#"TV Asahi's page for Burst Mode". http://www.tv-asahi.co.jp/kiva/rider/burstmode.html. Retrieved 2009-06-27.
#"TV Asahi's page for Rising Ixa". http://www.tv-asahi.co.jp/kiva/rider/risingixa.html. Retrieved 2009-06-27.
#"イクサ！バージョンアップだ！！". http://www.toeihero.net/onair/kiva/13.shtml. Retrieved 2008-10-31.
#"TV Asahi's page for Ixa Belt and the Ixa Knuckle". http://www.tv-asahi.co.jp/kiva/rider/ixaknuckle.html. Retrieved 2009-06-27.
#"TV Asahi's page for the Ixa Calibur". http://www.tv-asahi.co.jp/kiva/rider/ixacalibur.html. Retrieved 2009-06-27.
#"イクサ！バージョンアップだ！！". http://www.toeihero.net/onair/kiva/13.shtml. Retrieved 2008-10-31.
#"TV Asahi's page for the Garulu Saber". http://www.tv-asahi.co.jp/kiva/rider/garulusaber.html. Retrieved 2009-06-27.
#"TV Asahi's page for the Ixariser". http://www.tv-asahi.co.jp/kiva/rider/ixariser.html. Retrieved 2009-06-27.
#"Honda | お客様相談センター | 仮面ライダーのバイク（仮面ライダーイクサ）". http://www.honda.co.jp/customer/tips/kamen-rider/ixa/index.html. Retrieved 2008-11-20.
#"TV Asahi's page for the Ixalion". http://www.tv-asahi.co.jp/kiva/rider/ixalion.html. Retrieved 2009-06-27.
#"TV Asahi's page for the Powerd Ixer". http://www.tv-asahi.co.jp/kiva/rider/powerdixer.html. Retrieved 2009-06-27.
*Keisuke Nago in Kamen Rider Official Website.
*Kamen Rider IXA burst mode in Kamen Rider Official Website.
*Kamen Rider IXA Rising Mode in Kamen Rider Official Website.
Category:Rival
Category:Kiva Riders
Category:Heisei Era Riders
category:Wonderful Blue Sky Organization
Category:Antiheroes
Category:Heroes
Category:Kiva Characters
Category:Secondary Riders