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Keiji Uraga is a scientist working for the Downfall terrorist organization and the main antagonist of the Kamen Rider Build V-Cinema movie Kamen Rider Build NEW WORLD: Kamen Rider Grease. After stealing a Build Driver, he gains the power to transform into Kamen Rider Metal Build. He later absorbs the White Pandora Panel and becomes Kamen Rider Phantom Build.

He was portrayed by Tamiyasu Cho.

History

Keiji Uraga was originally a test subject of the Faust organization that was forcibly transformed into the Zebra Lost Smash and then beat to death to extract the Zebra Lost Bottle.

As UN representative and secret Downfall member Simon Marcus was meeting with Prime Minister of Japan Taizan Himuro to discuss the Rider System, Keiji Uraga hacked into the Guardian robots serving as guards and led several Downfall members in an attack on the government building. Gentoku Himuro transformed into Kamen Rider Rogue to fight the members off, but Simon Marcus then revealed his allegiance to the Downfall organization and transformed into Phantom Crusher, using its power to remove Gentoku's ability to transform and force him out of his transformation.

Uraga then sent a Phantom Crusher and some hacked Guardians to attack Sento's workshop and steal the White Pandora Panel. However, after the Downfall member returned Uraga discovered the panel was a fake and smashed it before executing the Downfall member for his failure.

After discovering that somehow Kazumi Sawatari and the Hokuto Three Crows were immune to Phantom Crusher's powers, Uraga went to kidnap Misora Isurugi to lure them out. The Hokuto Three Crows and Kazumi eventually showed up to save her, but Uraga transformed into Kamen Rider Metal Build and defeated all four of them, critically wounding the Hokuto Trio. Returning to Downfall's headquarters, Uraga kills Simon Marcus to assume his position before delivering a broadcast to the people of Japan as Downfall members and hacked Guardians attack the streets. Eventually, after drinking a concoction of Nebula Gas that made them regain their ability to transform, the other Riders accompany Kazumi to rescue Misora from Downfall's headquarters. Transforming into Kamen Rider Grease Blizzard, Kazumi storms the building and fights off Downfall's forces before being confronted by Metal Build. As the two face off, a Phantom Crusher swoops in from behind and causes Grease to drop the White Pandora Panel, allowing Metal Build to seize it and absorb it to assume a new form, which he dubs "Phantom Build".

However, Kazumi then uses the Grease Perfect Kingdom power-up Sento developed for him to transform into Kamen Rider Grease Perfect Kingdom. With this new power, Grease fights and soundly defeats Phantom Build, fatally wounding him. As he fades away, Keiji Uraga exchanges some final words with Kazumi before his body dissolves and leaves behind the White Pandora Panel.

Gallery

Trivia

  • The way that he was treated as number 2 was referenced to a disney villain from 2019 movie named Jafar.

Navigation

           BUILD LOGO Villains

Faust
Night Rogue | Blood Stalk | Takumi Katsuragi | Shinobu Katsuragi | Nariaki Utsumi | Shingo Kuwata | Eita Kawai | Masahiro Nabeshima | Norio Matsui | Yoshikazu Takahashi | Faust Guardians

Hokuto
Yoshiko Tajimi | Blood Stalk | Kazumi Sawatari | Hokuto Three Crows | Akaba | Aoba | Kiba | Massugu Ubukata | Hokuto Guardians

Seito
Masakuni Mido | Kamen Rider Rogue | Fu Washio | Rai Washio | Seito Guardians | Hard Guardians

Namba Heavy Industries Ltd.
Juzaburo Namba | Nariaki Utsumi | Fu Washio | Rai Washio | Sawa Takigawa | Kaisei Mogami | Guardians | Hard Guardians

Blood Tribe
Kengo Ino | Ryoka Saiga | Mitsuomi Gohara | Evolt | Killbus

Smash
Needle Smash | Strong Smash | Burn Smash | Flying Smash | Press Smash | Ice Smash | Stretch Smash | Fang Smash

Downfall
Simon Marcus | Keiji Uraga | Phantom Crushers | Guardians | Hard Guardians

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