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Ren Akiyama (秋山 蓮, Akiyama Ren) is one of the participants of the Rider Fight known as Kamen Rider Knight (仮面ライダーナイト, Kamen Raidā Naito, Masked Rider Knight).
History[]
13 Riders[]
Ren sees Shinji taking over the Ryuki deck after its last owner dies, and demands the deck be returned, until he sees the list of names. He warns Shinji, but later after setting Shinji up as plotted with the other Riders (in a form of a truce between the Riders) he couldn't bring himself to finish Shinji off, with their friendship developing. In the end, he pushed Ryuki out of the way and took the blow of Kamen Rider Verde's Death Vanish Final Vent. He shook the damage long enough to kill Verde with his Flyinglancer Final Vent (similar to how Miyuki Tezuka died in the series, pushing Ryuki out of the way to receive Kamen Rider Ohja's Veno Crash Final Vent). Shortly afterwards, he died in Shinji's arms after giving him the Knight deck, making Shinji Kido the second character to be two separate Riders in the same series.
Kamen Rider Knight[]
- Rider Height: 195 cm
- Rider Weight: 95 kg
Rider Senses:
- Eyesight: 10 km
- Hearing: 25 km
Ability Parameters:
- Punching Power: 10 t (200 AP)
- Kicking Power: 15 t (300 AP)
- Resistance: 150 t (3000 GP) with Wingwall [note 1]
- Maximum Jump Height: 40 m
- Maximum Running Speed: 100 m per 4.5 seconds
Special Attacks:
- Winglancer: 100 t [note 2]
- Sonicbreaker: 50 t[note 2]
- Shadow Illusion: 50 t[note 2]
- Rengekizan: 300 t[note 2]
- Flyinglancer: 250 t[note 2]
- Advent: Darkwing: 200 t[note 2]
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 drop kick 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.
This form is exclusive to Kamen Rider Ryuki Special: 13 Riders

Knight Survive
- "Survive!"
- ―Transformation announcement[src]
- Rider Height: 198 cm
- Rider Weight: 97 kg
Rider Senses:
- Eyesight: 15 km
- Hearing: 30 km
Ability Parameters:
- Punching Power: 15 t (300 AP)
- Kicking Power: 22.5 t (450 AP)
- Resistance: 150 t (3000 AP) with Darkshield[note 1]
- Maximum Jump Height: 50 m
- Maximum Running Speed: 100 m per 4.2 seconds
Special Attacks:
- Darkblade: 200 t (4000 AP)[note 2]
- Darkarrow: 150 t (3000 AP)[note 2]
- Sonicbreaker: 100 t (2000 AP)[note 2]
- Sonic Blast: 100 t (2000 AP)[note 2]
- Shadow Illusion: 100 t (2000 AP)[note 2]
- Shippudan: 400 t (8000 AP)[note 2]
- Advent: Darkraider: 300 t (6000 AP)[note 2]
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 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 reminder 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.
This form is exclusive to Kamen Rider Ryuki Special: 13 RidersContract Monster[]
- Main article: Darkwing
Equipment[]
- 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
Vehicles[]
- Rideshooter - Motorcycle used by any Rider to enter the Mirror World
- Darkraider Bike Mode - Serves as Knight Survive's bike.
Behind the Scenes[]
Portrayal[]
Ren Akiyama is portrayed by Satoshi Matsuda (松田 悟志, Matsuda Satoshi). As Kamen Rider Knight, his suit actor was Makoto Ito (伊藤 慎, Itō Makoto).