This article is about a/an rider in Kamen Rider Ryuki.

Koichi Sakakibara (榊原 耕一 Sakakibara Kōichi) is the original Kamen Rider Ryuki before Shinji Kido that appeared in 13 Riders.

In the original TV series, his name was mentioned in the first 2 episodes of Ryuki.


Koichi is a man who lived in an apartment where Shinji found a Card Deck that led him to become Kamen Rider Ryuki. He disappeared prior to the start of the series, possibly eaten by Dragreder.

In the 13 Riders TV special, Sakakibara is the original Ryuki. He saved Shinji but as he could no longer go on due to the severity of his injuries, he passed his deck on to Shinji as he dissolved inside the Mirror World.

After Koichi faded, Shinji became Kamen Rider Ryuki and tried to prevent the other Riders from fighting as his way of thanking Sakakibara.

Kamen Rider Ryuki


Kamen Rider Ryuki

Rider Statistics

  • Rider Height: 190 cm.[1]
  • Rider Weight: 90 kg.[1]

Rider Senses:

  • Eyesight: 15 km.[1]
  • Hearing: 15 km.[1]

Ability Parameters:

Special Attacks:

Koichi can transform into Kamen Rider Ryuki using his Advent Deck and V Buckle upon forming a contract with Dragreder. He is equipped with the Dragvisor on his left arm. In comparison to the other Riders, his parameters are balanced.

Through the use of his Sword Vent Advent Card, Ryuki can arm himself with the Dragsaber (ドラグセイバー Doragu Seibā), a sword derived from Dragreder's tail. His Strike Vent arms him with the Dragclaw (ドラグクロー Doragu Kurō), a gauntlet capable of shooting fireballs that is derived from Dragreder's head. With the Dragclaw, Ryuki can perform the Dragclaw Fire (ドラグクローファイヤー Doragu Kurō Faiyā) attack with Dragreder, in which he and Dragreder each launch a fireball at the opponent. His Guard Vent equips him with the Dragshield (ドラグシールド Doragu Shīrudo), two shields derived from segments of Dragreder's body that can be held by hand or mounted on Ryuki's shoulders.

By using his Final Vent, Ryuki can execute his finisher, the Dragon Rider Kick (ドラゴンライダーキック Doragon Raidā Kikku), in which he jumps into the air with Dragreder flying behind him. Dragreder then breathes fire at Ryuki, propelling him into a flying kick that strikes the enemy.

This form is exclusive to Kamen Rider Ryuki Special: 13 Riders.

Behind the scenes


Koichi Sakakibara is portrayed by Keiichi Wada (和田 圭市 Wada Keiichi), who previously portrayed Ryo of the Heavenly Fire StarIcon-crosswiki (RyuuRanger) from Gosei Sentai DairangerIcon-crosswiki, a Red Sentai Warrior that shares the same theme with Ryuki: both controlled Asian dragons who can breathe fire.


  • Along with Yūta Mochizuki who had played Kouji Segawa (Kamen Rider J) and previously Yamato Tribe Prince GekiIcon-crosswiki (TyrannoRanger), Koichi Sakakibara can be counted as the second time a main Kamen Rider was played by the actor who also portrayed a Red Ranger in a Super Sentai series prior to his casting as a Rider.
    • Interestingly, his actor also potrayed a ranger with Chinese Dragon motif, Ryuuranger from Gosei Sentai Dairanger.
  • He has the same name with the protagonist of the anime Another, Kouichi Sakakibara.



  1. 200 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  2. 400 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  3. 2000 GP[1], conversion: 1 GP (Ryuki) = 20 t.
  4. 150 t. with Tornade Defense, 3000 GP[1], conversion: 1 GP (Ryuki) = 20 t.
  5. 5.0 5.1 5.2 2000 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  6. 6.0 6.1 3000 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  7. 6000 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  8. 7000 AP[3], conversion: 1 AP (Ryuki) = 20 t.
  9. 5000 AP[4], conversion: 1 AP (Ryuki) = 20 t.

See Also

Icon-ryuuki Kamen Rider Ryuki
The 13 Kamen Riders
Shinji Kido - Ren Akiyama - Masashi Sudo - Shuichi Kitaoka - Miyuki Tezuka - Jun Shibaura - Takeshi Asakura - Satoru Tojo - Mitsuru Sano - Kamen Rider Odin - Goro Yura
Movie Exclusive: Itsuro Takamizawa - Miho Kirishima - Dark Shinji
The Alternatives
Hajime Nakamura - Hideyuki Kagawa
Kanzaki family
Yui Kanzaki - Shiro Kanzaki - Sanako Kanzaki
ORE Journal
Daisuke Okubo - Reiko Momoi - Nanako Shimada - Megumi Asano
Mirror Monsters
The Contract Monsters: Dragreder - Darkwing - Volcancer - Magnugiga - Evildiver - Metalgelas - Venosnaker - Genocider - Destwilder - Gigazelle - Goldphoenix - Biogreeza - Blancwing - Dragblacker - Psycorogue
Wild Mirror Monsters: Spiders (Dispider - Mispider - Respider - Solospider) - Zelles (Gigazelle - Megazelle - Magazelle - Negazelle - Omegazelle) - Zebraskulls (Iron - Bronze) - Boarders (Wildboarder - Shieldboarder) - Biters (Zenobiter - Terabiter) - Krakens (Bakraken - Wiskraken) - Gulds (GuldThunder - GuldStorm - GuldMirage) - Abyss (Abysshammer - Abysslasher - Abyssodon) - Buzzstingers (Hornet - Bee - Wasp - Frost - Broom) - Sheerghosts (Sheerghost - Raydragoon - Hydragoon) - Deadlemur - Gelnewt - Sonorabuma - Brobajell - Fake Kamen Rider Agito
View • [Edit]
Community content is available under CC-BY-SA unless otherwise noted.