Icon-ryuuki.png This article is about a/an rider in Kamen Rider Ryuki.

For the A. R. World version, see Ren Haguro.

Ren Akiyama (秋山 蓮 Akiyama Ren) is one of the main protagonists of Kamen Rider Ryuki who participates in the Rider Fight as Kamen Rider Knight (仮面ライダーナイト Kamen Raidā Naito, Masked Rider Knight) for the sake of his comatose fiancee Eri Ogawa.


TV Series

He is a cold loner who fights constantly and is frequently unemployed. He received his Card Deck before the start of the series. He accepted Kanzaki's offer to join the Rider war to give his fiancée, Eri Ogawa, a full recovery, who has been in a mysterious coma ever since an encounter with Darkwing. Ren later contracted with Darkwing and became Kamen Rider Knight.

Knight in Survive fights Ouja.

After Shinji Kido, he would still persist to fight any and all Riders. But the ordeal of his memory loss had him leave the Tea Atori to clear his head. Meeting Miyuki Tezuka, who reveals himself as Raia, while pointing out that though he accepted his fate as a Kamen Rider, Ren had doubts in his heart if he could actually take a life. He later inherited the Survive Shippu Card from Tezuka. Over time he eventually softened up and slowly came to return Shinji's constant offers of friendship. Throughout the series, they formed a somewhat of a rivalry, which Ren took more seriously than Shinji because of the Rider War.

Ren beside a dying Shinji.

Ren dies after he finally revives his fiancée, Eri.

Shiro eventually declares him as the last Rider. All the other Riders had died, but it was Shinji's death in Episode 49 that devastated him, as he had finally accepted Shinji as his best friend. Ironically enough, however, Shinji's dying words galvanized Ren into bringing the war to an end. Shiro Kanzaki brought him to fight the remaining Rider, Kamen Rider Odin. As Ren was about to lose, Shiro Kanzaki was tormented by his sister Yui Kanzaki's words, and self-destroyed Odin, thus making Ren the final Rider. The wish appeared, and Ren used it to save Eri's life as he had originally intended. Returning to the hospital where Eri laid, she wakes up to see Ren's engagement ring on her finger, and a loyal Ren, lying against the wall. Unbeknownst to her at the time, the battle with Odin had proved too much, and Ren died. After Shiro restored time to its proper course after Yui's death, Shinji (and also Ren) were revived with no memory of being Riders, thus they are unable to recognize each other in one of the final scenes of the series. It can also be noted that his fiancée, Eri still lives as she was put into a coma in the first place due to Darkwing.

Post Series and other events

Hyper Battle Video - Ryuki vs Agito

Ryuki, Knight, Zolda, Ouja, & Agito team up

Zolda, Knight and Ouja fighting the rest back. They apologize for being late; when Ryuki accuses Ouja of being a villain, they all claim that as Kamen Riders they are the protectors of humanity, all completely out of character. They rush in to keep fighting the Monsters as Ryuki stands in confusion, but he eventually joins in. As they fight the monsters down, explosions knock them all back, and the mysterious figure appears, named by Knight as Kamen Rider Agito, and by Zolda as the ruler of the "Miracle World". Burning Agito attacks them with fire before a gold figure jumps in, introducing himself as the real Kamen Rider Agito, saying Burning Form is a Miracle World illusion. The five Riders strike a pose and rush forward to fight the Fake Agito and his Mirror Monsters. the real Agito appears in Ground Form and teams up with Kamen Rider Ryuki, who imitates Agito's Rider Kick to destroy the imposter. In the end, this is revealed to be Shinji's dream.

OOO, Den-O, All Riders: Let's Go Kamen Riders

Kamen Rider Knight in Legend War.png

Kamen Rider Knight 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. OOO, Den-O, All Riders: Let's Go Kamen Riders

Kamen Rider × Super Sentai: Super Hero Taisen

Ren (as Knight, behind Hibiki) as seen in Super Hero Taisen

Knight is one of the Rider Team which consist of Black, G3, Zolda, Hibiki and Gatack that fought against Gokai Red only to be defeated by his Gokai Sabre Slash. It's unknown if he reappeared or not during the final battle.

Chou Super Hero Taisen

More Sentai and Riders 3.png

Knight is a participant in the Sentai-Rider battle tournament Forming part of Team Flying with Kamen Rider OOO Tajadol Combo,Skyrider,AbareYellowIcon-crosswiki.png and PteraRangerIcon-crosswiki.png.

Kamen Rider Zi-O

Kamen Rider Heisei Generations FOREVER


Kamen Rider Knight 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 Heisei Generations FOREVER  

Blade Joker!? 2019

Kamen Rider Woz vs Knight and Baron

Diend gets the upper hand by summoning Kamen Rider Baron and Knight to gang up on Woz. He tells Woz that they can have those treasures back and uses his Attack Ride: Neo Invisible card to getaway. The summons of Baron and Knight vanish soon after. Blade Joker!? 2019

Appearances in other media

OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~

Type40. - The Match Ignores the Way of the Knight!


Kamen Rider Knight appears in a Poker Battle alongside General Shadow, Kamen Rider Garren, and Kamen Rider Chalice, this last three had a great hand but with the exception of Knight due to him having a weak hand thus making Knight's loss very likely when General Shadow, Garren, and Chalice reveal their letters, as Knight uses trick vent to reveal six cards in three pairs, resulting in his victory.Type40. - The Match Ignores the Way of the Knight!

Video Game appearances

Kamen Rider Battle: Ganbaride

Kamen Rider Knight card

Kamen Rider Knight appears as a playable character in this video game Kamen Rider Battle: Ganbaride.

Kamen Rider Battle: Ganbarizing

Kamen Rider Knight and his survive form appear as a playable character in Kamen Rider Battle: Ganbarizing.

Kamen Rider Riderbout

Kamen Rider Knight and Survive Form appears as a playable character with the other Heisei and Showa Kamen Riders in Kamen Rider Riderbout.

Kamen Rider Break Joker

Kamen Rider Knight Break Joker card

Kamen Rider Knight appears as a playable character with other Riders and monsters in Kamen Rider Break Joker.

Kamen Rider: Battride War series

Kamen Rider: Battride War

Knight as he appears in the game.

Kamen Rider Knight appears in the video game Kamen Rider: Battride War.

Kamen Rider: Battride War II

Kamen Rider Knight returns in Kamen Rider: Battride War II.

Kamen Rider: Battride War Genesis

Kamen Rider Knight in Battride War Genesis.

Kamen Rider Knight made his playable debut in the video game Kamen Rider: Battride War Genesis, with Satoshi Matsuda reprising his role.

In all forms, Knight is able to summon his Advent Monster, unlike Ryuki whose Advent Monster summoning is very limited for his default form. Knight is considered as an aerial combat-based character.

Kamen Rider Transcend Heroes

Kamen Rider Knight and his Survive Form appears as a playable character with others Kamen Riders in the video game, performer his Flyinglancer and in his Survive Form his Shippudan against his enemies Kamen Rider Transcend Heroes.

Kamen Rider Buttobasoul

Kamen Rider Knight and his Survive Form is a playable character among other Kamen Riders in Kamen Rider Buttobasoul.

Battle Spirits

Kamen Rider Knight and his Survive Form appears with other Kamen Riders and Monsters in Battle Spirits.

Kamen Rider City Wars

Kamen Rider Knight as seen in city wars

Kamen Rider Knight and survive form is a playable character in Kamen Rider City Wars alongside the other Kamen Riders.


Ren is a cold, harsh person, and a hardcore loner. He is very talented as he is always able to serve the customers in Cafe alongside Shinji. But despite his cold personality, he is actually a kind person and can become emotionally distracted when someone he considers close is injured or dying. Even when he got amnesia, his personality didn't change.

Ren is a contradictory person, telling Shinji to not hesitate at the prospect of killing, yet unable to do so himself, only forging on due to saving Eri. He opposes companionship, yet in reality, he very much needs it. Although his relationship with Shinji had a rocky start due to him naturally being opposed to friendship, he considering Shinji his only friend and willing to go to great lengths to help him. In fact, as cold and stoic as he is, he is shown weeping in sorrow at Shinji's sacrifice, further emphasizing the hidden emotion and friendship that he has for him.


Blank Form

Blank Form

Blank Form (ブランク体 Buranku-tai) is the form Knight takes when he does not have a Contract Monster. It has not been shown in any media, but its concept art can be seen in the artbook Kamen Rider Art Collection Hero Hen.


Kamen Rider Knight

Kamen Rider Knight With Wingwall cape

Rider Statistics[1]

  • Rider Height: 195 cm.[2]
  • Rider Weight: 95 kg.[2]

Rider Senses:

  • Eyesight: 10 km.[2]
  • Hearing: 25 km.[2]

Ability Parameters:

  • Punching Power: 10 t.[note 1]
  • Kicking Power: 15 t.[note 2]
  • Resistance: 150 t. with Wingwall[note 3]
  • Maximum Jump Height: 40 m.[2]
  • Maximum Running Speed: 100 m. per 4.5 sec.[2]

Special Attacks:

Ren can transform into Kamen Rider Knight's default form using his Card Deck and V Buckle upon forming a contract with Darkwing. His Visor, the Darkvisor, is a rapier that also functions as his personal weapon. In comparison to Ryuki, Knight has lower kicking power but higher jump height and running speed.

In addition to the Darkvisor, Knight can arm himself with the Winglancer (ウイングランサー Uingu Ransā), a lance derived from Darkwing's tail, by using his Sword Vent Advent Card. The remainder of Darkwing's body can be mounted on Knight's back, where its wings become a cape. This can be done by using either his Guard Vent or Final Vent. (However, Ren is often seen transforming into Knight with the cape already equipped). When using the Guard Vent card, the wings are in their original form and close around Knight to form the Wingwall in order to protect him from attacks.

Using his Final Vent allows Knight to perform his finisher, the Flyinglancer (飛翔斬 Hishōzan), which equips him the Winglancer and Darkwing's cape form if he does not already possess them. Knight then jumps into the air and performs a dropkick while holding the Winglancer downward, resulting in it being parallel to his legs. Finally, Knight's cape forms a drill around him before he strikes the enemy.

Appearances: Ryuki Episodes 1-6, 9-10, 12-14, 16, 19-29, 31-32, 34-35, 37-41, 43, 45-47, 49-50, Ryuki vs Kamen Rider Agito, Let's Go Kamen Riders, Super Hero TaisenIcon-crosswiki.png,Chou Super Hero TaisenIcon-crosswiki.png,Heisei Generations FOREVER (as a toy) , Zi-O Episode 29

Knight Survive

Knight Survive

―Transformation announcement[src]

Rider Statistics

  • Rider Height: 198 cm.[2]
  • Rider Weight: 97 kg.[2]

Rider Senses:

  • Eyesight: 15 km.[2]
  • Hearing: 30 km.[2]

Ability Parameters:

  • Punching Power: 15 t.[note 2]
  • Kicking Power: 22.5 t.[note 8]
  • Resistance: 150 t. with Dark Shield[note 3]
  • Maximum Jump Height: 50 m.[2]
  • Maximum Running Speed: 100 m. per 4.2 sec.[2]

Special Attacks:

Kamen Rider Knight Survive (仮面ライダーナイトサバイブ Kamen Raidā Naito Sabaibu) is Knight's final form, assumed by using the Survive Shippu Advent Card. The Survive Shippu card transforms the Darkvisor into the Darkvisorzwei, which Knight uses to transform into Survive Form and read Advent Cards. Transforming into Survive Form also causes Darkwing to transform into Darkraider. Survive Form enhances all of Knight's stats, allowing him to surpass all other Riders, with the exception of those who are also using a Survive Advent Card, such as Knight Survive and Odin.

In its default form, the Darkvisorzwei is an arm-mounted scabbard. Using the Shoot Vent converts the Darkvisor to a crossbow mode named the Darkarrow (ダークアロー Dāku Arō). Using the Sword Vent allows Knight to draw the Darkblade (ダークブレード Dāku Burēdo) from the Dark Vizor-Zwei, with the remainder becoming the Darkshield (ダークシールド Dāku Shīrudo).

By using his Final Vent, Knight Survive can perform his finisher, the Shippudan (疾風断 Shippūdan, lit. "Hurricane Edge"), which transforms Darkraider into a bike for Knight to ride. Knight drives toward the target before the front of Darkraider fires a laser at the opponent, paralyzing it. Knight's cape then covers him and Darkraider, forming a missile that flies into the enemy.

Appearances: Ryuki Episodes 23-24, 26-27, 34-35, 37, 39-40, 46-50.

Contract Monster

Main article: Darkwing


  • Card Deck - Transformation device and Advent Card holder
  • V Buckle - Transformation belt
  • Advent Cards - Trinkets that enable a Rider to summon Contract Monsters, access equipment, and use special abilities
  • Darkvisor - Knight's Visor that enables him to use Advent Cards
    • Darkvisorzwei - Upgraded version of the Darkvisor used to transform into Knight Survive


Legend Rider Devices

"Kamen Ride: Knight!"
―DX NeoDiendriver summoning announcement[src]

KamenRide: Knight

KamenRide: Knight: A Rider Card containing the power of Kamen Rider Knight. Used by Diend to summon Kamen Rider Knight, First used in Kamen Rider Zi-O Episode 29 to fight Black Woz .

"(Digital beeping) Knight!"
―Activation announcement[src]

"The bat Rider with blue armor is... Knight! (青い鎧の蝙蝠ライダーは…ナイトだ! Aoi yoroi no kōmori Raidā wa...Naito da!)"
―Secondary activation announcement[src]

"(Right-hand Ridewatch's announcement)! Armor Time! (Darkwing screeching noises into V Buckle-esque electronic beat) Advent! Knight!"
―Transformation announcement in the Ziku-Driver's left-hand slot[src]

"Finish Time! Final Time (Break/Burst)!"
―Finisher announcement in left-hand slot[src]

Knight Ridewatch (ナイトライドウォッチ Naito Raidowotchi): Based on Kamen Rider Knight, this Ridewatch would provide access to the KnightArmor. It is dated 2002.

This Ridewatch manifested through the Darkwing card in Shinji's possession in Episode 3 of Rider Time: Ryuki. Instead of using KnightArmor, Geiz used it in Zikan Zax to defeat Kamen Rider Odin along with Zi-O DecadeArmor Ryuki Form.

"(Digital beeping) Knight Survive!"
―Activation announcement[src]

"The evolved knight who fights for survival... Knight Survive! (生き残りを懸け進化した騎士…ナイトサバイブ! Ikinokori wo kake shinka shita kishi...Naito Sabaibu!)"
―Secondary activation announcement[src]

"(Right-hand Ridewatch's announcement)! Armor Time! (Darkwing screeching noises into V Buckle-esque electronic beat) Survive! Knight Survive!"
―Transformation announcement in the Ziku-Driver's left-hand slot[src]

"Finish Time! Final Time (Break/Burst)!"
―Finisher announcement in left-hand slot[src]

Knight Survive Ridewatch (ナイトサバイブライドウォッチ Naito Sabaibu Raidowotchi): Based on Kamen Rider Knight, this Ridewatch would provide access to the KnightSurviveArmor. It is dated 2002.[8]

Behind the scenes


Ren Akiyama is portrayed by Satoshi Matsuda (松田 悟志 Matsuda Satoshi). As Kamen Rider Knight, his suit actor was Makoto Itō (伊藤 慎 Itō Makoto).

Concept Art


  • Kamen Rider Knight's name, Naito, also sounds like the English "Night", which could also refer to his color scheme which reflects darkness and night (his color is dark navy).
    • Furthermore, his monster's motif is based on a nocturnal creature.
    • Due to his dark armored theme and Kamen Rider name, he shares a similarity to DC Universe's Batman, who is also known as "The Dark Knight".
  • Shinji and Ren's pre-transformation poses harkens back to the ones performed by the Double Riders, hinting their team-up as partners (Shinji with Rider 1 and Ren with Rider 2).
  • Ren is the first Rider to be based on a mammal. In this case, a Bat.
  • Ren is the second Secondary Kamen Rider to obtain his Final Form before the Primary Kamen Rider, with the other being Makoto Hikawa.
  • Ren is the first and only Secondary Kamen Rider to fight the final boss in the series finale instead of the Primary Kamen Rider.
  • Ren is the first Kamen Rider in the series to sport a cape (when using Guard Vent or Final Vent and while in Survive form).
  • Kamen Rider Knight is one of 2 riders who use a sword as their Visor, the other is Kamen Rider Femme.
  • If one looks closely at Knight's mask, a pair of eyes can be seen behind the mask's visor.
    • Magazine scans and the PlayStation game show that these eyes are able to glow.
  • Knight is the second Second Rider to debut before his series' Primary Rider, and making the earliest debut at that, being the very first episode after G3.
    • This would be followed by Geiz Myoukouin (Kamen Rider Geiz) 16 years later.
  • Ren's death is ironic just like the other Mirror Riders: He told Tezuka that fighting was the only reason for his existence, and having finished the Rider War and thus having no more reason to fight, he also had no more reason to exist, dying right before he could meet Eri again.
  • Ren fighting against Dark Shinji face-to-face, instead of Shinji Kido, in Part 2: Rider Time Ryuki is very similar to the last part of the opening of Kamen Rider Ryuki, wherein Ren as Knight fighting against Shinji as Ryuki face-to-face.
  • In Rider Time: Kamen Rider Ryuki, Ren's death to protect Shinji mirrors Shinji's demise in the TV Series.
    • Ren’s death to protect Shinji had actually first happened in 13 Riders special.
  • Like a later "tournament-style Rider series" which had the franchise's first Spider Rider, Knight is the first associated with the Bat, one of the most notable of all animals associated with Kamen Rider monsters.




  1. 200 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  2. 2.0 2.1 300 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  3. 3.0 3.1 3000 GP[2], conversion: 1 GP (Ryuki) = 20 t.
  4. 2000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  5. 5.0 5.1 1000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  6. 5000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  7. 4000 AP[3], conversion: 1 AP (Ryuki) = 20 t.
  8. 450 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  9. 4000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  10. 3000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  11. 2000 AP[4], conversion: 1 AP (Ryuki) = 20 t.
  12. 2000 AP[5], conversion: 1 AP (Ryuki) = 20 t.
  13. 2000 AP[6], conversion: 1 AP (Ryuki) = 20 t.
  14. 8000 AP[2], conversion: 1 AP (Ryuki) = 20 t.
  15. 6000 AP[7], conversion: 1 AP (Ryuki) = 20 t.

External Links

See also

Icon-ryuuki.png 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/Special Exclusive: Koichi Sakakibara - Itsuro Takamizawa - Miho Kirishima - Dark Shinji
Stageshow Exclusive: Kamen Rider Papillon - Kamen Rider Cerberus
The Alternatives
Hajime Nakamura - Hideyuki Kagawa
Transformation Devices
Card Decks - V Buckle - Advent Cards
Dragvisor - Darkvisor - Scissorsvisor - Magnuvisor - Evilvisor - Metalvisor - Venovisor - Destvisor - Gazellevisor - Biovisor - Blancvisor - Blackdragvisor - Goldvisor - Slashvisor - Abyssvisor
Sword Vents
Ridesaber - Dragsaber - Winglancer - Venosaber - Wingslasher - Goldsabers - Dragsaber (Ryuga) - Abysssaber - Slashdagger
Strike Vents
Dragclaw - Scissorspinch - Gigahorn - Metalhorn - Destclaws - Dragclaw (Ryuga) - Abyssclaw
Guard Vents
Dragshield - Wingwall - Shelldefense - Gigaarmor Wingshield - Dragshield (Ryuga) - Goldshield
Shoot Vents
Gigacannon - Gigalauncher
Swing Vents
Spin Vents
Hold Vents
Rideshooter - Dragranzer (Bike Mode) - Darkraider (Bike Mode) - Psycoroader
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 (Contract Monster) - Goldphoenix - Biogreeza - Blancwing - Dragblacker - Psyco-Rogue
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
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