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Jun Shibaura, is one of the 13 Kamen Riders of the Rider War as Kamen Rider Gai and a major antagonist in the third Heisei Kamen Rider installment Kamen Rider Ryuki.

He was portrayed by Satoshi Ichijo.

History

A 3rd year college student at Meirin University, Jun was a skilled computer programmer and a part of his school's Matrix Netgame Club. Jun saw the Rider War as the "ultimate game" and joined it simply so he could be the winner. He recreated the game in the form of a computer game that would send subliminal messages to the player and got his fellow Matrix members to play it so he could make them fight to the death while he watched from the shadows. These deaths led Shinji Kido to investigate. He soon met Jun who revealed himself as the mastermind behind the game of death.

Jun would later attack Ryuki to steal his Dragreder card which he used along with a virus he uploaded to the ORE Journal mainframe to become the chief editor of ORE Journal. However, Shimada counteracted Jun's hacking with her own virus and Miyuki Tezuka stole back the Dragreder card. Jun was then arrested by the police for the murders of the Matrix members, but was bailed out his father.

Jun later joined up with Takeshi Asakura after he joined the Rider War as well, impressed with his bloodlust. He then kidnapped Yui to cause a "Rider party" between him, Kamen Rider Ryuki, Kamen Rider Knight, and Kamen Rider Raia where they would all fight to the death. However, their battle eventually got mixed up with the one between Kamen Rider Zolda and Kamen Rider Ouja. Gai would meet his end when Ouja used him as a shield against Zolda's Final Vent. Jun cursed Ouja, saying he was supposed to make the game more fun, but Asakura simply responded that it was his fault for being close before finishing him off with his own hands. Angered at its master's death, a vengeful Metalgelas attempted to attack Kamen Rider Ouja but met his end at Ouja's contract card.

Advent Deck

Trivia

  • His Rider name, Gai, is a kun'yomi reading for the kanji "Yoroi" (鎧 lit. "armor"), as his Rider form appeared as he is heavily armored along with his Mirror Monster, Metalgelas.
  • Like the rest of the Mirror Riders, he died an ironic death. He enjoys manipulating people to alleviate his boredom, only for him to be killed and used by the person he thought he could manipulate.

Navigation

          Ryuki Logo.pngVillains

Kamen Riders
Masashi Sudoh | Jun Shibaura | Takeshi Asakura | Satoru Tojo | Mitsuru Sano | Kamen Rider Odin | Dark Shinji | Itsuro Takamizawa

Mirror Monsters
Spiders: Dispider | Mispider | Respider | Solospider
Zelles: Gigazelle | Megazelle | Negazelle | Omegazelle | Magazelle
Zebraskulls: Zebraskull Iron | Zebraskull Bronze
Boarders: Wildboarder | Shieldboarder
Biters: Zenobiter | Terabiter
Krakens: Bakraken | Wiskraken
Gulds: GuldThunder | GuldMirage | GuldStorm
Abyss: Abysshammer | Abysslasher
Buzzstingers: Buzzstinger Hornet | Buzzstinger Bee | Buzzstinger Wasp | Buzzstinger Broom | Buzzstinger Frost
Sheerghosts: Sheerghost | Raydragoon | Hydragoon

Other
Shiro Kanzaki

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Time Jackers
Swartz | Uhr | Ora | Tid | Finis

Another Riders
Another Build | Another Ex-Aid | Another Fourze | Another Faiz | Another Wizard | Another OOO | Another Double | Another Den-O | Another Kuuga | Another Gaim | Another Ghost | Another Shinobi | Another Quiz | Another Ryuga | Another Kikai | Another Zi-O | Another Blade | Another Agito | Another Ryuki | Another Hibiki | Another Kiva | Another Kabuto | Another Den-O II | Another Drive | Another Decade | Another Zero-One | Another 1 | Another Diend

Oma Zi-O's Army
Oma Zi-O | Woz | Kasshin | Dai Mazines

Future Riders
White Woz | Kamen Rider Ginga

Legendary Riders
Masato Kusaka | Kaito Kumon | Tsukasa Kadoya | Hajime Aikawa | Daiki Kaito | Shun Kageyama | Katsumi Daido

Another World Riders
Kamen Rider G4 | Kamen Rider Fuma | Kamen Rider Dark Ghost | Kamen Rider Rey | Kamen Rider Eternal | Kamen Rider Woz | Kamen Rider Yuuki

Quartzer
Kamen Rider Barlckxs | Kagen | Jogen | Woz | Kasshin | Dai Mazines

Tid's Army
Masquerade Dopants | Waste Yummies | Stardust Ninja Dustards | Elementary Inves | Ghouls | Lost Number Roidmudes | Gamma Commandos | Guardians | Hard Guardians

Swartz's Army
Monsters: Strong Smash Hazard | Mashin Chaser | Elementary Inves | Orion Zodiarts | Shika Inves | Utopia Dopant | N-Daguva-Zeba | Sagittarius Zodiarts | Gamedeus | Kamen Rider Evol
Footsoldiers: Guardians | Masquerade Dopants | Elementary Inves | Lost Number Roidmudes | Ghouls | Gamma Commandos | Bugster Virus

Others
Waste Yummies | Gamma Commandos | Humanoise | Salis Worms | Gryllus Worm | Imposter Shun Kageyama | Mole Imagin

Rider Time Shinobi
Niji no Hebi
Yaminin | Stardust Ninja Dustards

Rider Time Ryuki
Tatsuya Kano | Takeshi Asakura | Jun Shibaura | Ishihashi | Tozuka | Kamen Rider Odin

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