Kazuma Kenzaki

"I will fight fate...and win."

- his words on fate after turning into the second Joker

Kazuma Kenzaki (剣崎 一真) is the main protagonist of the Kamen Rider Blade television series. He was chosen by the B.O.A.R.D. organization to use the sealed Category Ace of Spades to become Kamen Rider Blade (仮面ライダーブレイド). He has a good heart and believes in fighting to protect humanity.

Personality
Kazuma Kenzaki was a friendly cheerful man who had some social problems. Although he generally meant well, his personality initially caused him to have little to no friends. It was after he became Blade that he finally became friends with others including Hajime. Kenzaki was also a hot headed man who often let his feelings get the best of him. It was around the latter half of the series that he learned to think with his head more and became more adult like. After sacrificing his humanity to save Hajime and the world Kenzaki had to leave his friends therefore causing him to have a drastic personality change as he went from cheerful and hot headed to cold, calculating and merciless. It is likely that unlike all the other riders who`s sudden personality change in Decade was only temporarily, Kenzaki still remains the same to this day.

TV Series
At the age of 11, Kenzaki was orphaned when his family died in a house-fire. The powerlessness he felt would forever serve as the motivation to try and protect the defenseless, subsequently leading to being scouted by the B oard O f A rchaeological R esearch D epartment (otherwise known as B.O.A.R.D.). Because of his intelligence and exceptional survival instincts, he would eventually be promoted to field operative and the designated user of Rider System-02.

However, during assessment for the Rider System, Kenzaki displayed unusually high fusion coefficiency. Though this caused no immediate concern, as his levels maintained steady intervals. After being promoted to Rider status, Kenzaki would be partnered with fellow BOARD Rider and senior operative Sakuya Tachibana on assignment to hunt down three Undead over the next two months.

Eventually sealing the Bat Undead, Kenzaki meets a web-journalist named Kotarō Shirai, who begins investigating the Riders after witnessing Kenzaki carelessly changing back from his transformation. To lessen the risk of exposure (and to find a place to board after losing his apartment due to delinquent payments), Kenzaki made a deal with Kotarō: In exchange for information concerning the Riders, Kotarō would provide him a place to stay; being that his salary with BOARD was barely enough to make a living. But later that evening, disaster struck as BOARD HQ fell under attack from the Locust Undead.

With Tachibana's desertion and Karasuma--BOARD's president--no where to be found, Kenzaki and Shiori Hirose, one of BOARD's surviving staffers, set-up a new base of operations in Kotarō's home, using whatever equipment left undamaged during the Undead assault on BOARD HQ. Though operating at a limit capacity, Kenzaki, Hirose, and Kotarō successfully began tracking and sealing any active Undead in the area. But eventually Kenzaki redirects his focus on tracking down the rogue Tachibana, leading to a rivalry with a being named Chalice, who possesses similar powers & abilities to his Rider System. Their frequent encounters led to the discovery that Chalice was in fact a human named Hajime, but the origins of his powers and his motives remained a mystery at the time.

Kenzaki was later abducted by agents of a man named Isaka (the man responsible for Tachibana's strange behavior) who intended to used him in human/Undead fusion research. Kenzaki was forced into combat with the Trilobite Undead, and his fusion rate remained stable until Hajime appeared among his captors. Isaka witnessed a spike in Kenzaki's fusion ratio causing Hajime to transform and intervene, along with Tachibana. Hajime is revealed to be not human at all, but, in fact, the Joker Undead. Yet despite this knowledge, Kenzaki started to believe that there's some good in Hajime and not the monster he originally thought. However, once Griffa Undead was sealed, Hajime begins to lose control and his impulse as Joker comes forth with the Stone of Sealing creating an army of Dark Roaches to eliminate all humans. In the end, Kamen Rider Blade is the only one to combat him head on, both equal in power, intent on saving the Earth and Hajime from himself.

In the series ending, despite Hajime's pleas to Kenzaki to seal him once and for all to save the world, Kenzaki opted to sacrifice his humanity through excessive use of King Form in order to both save the world and Hajime, thus becoming a Joker himself. Hajime is allowed to keep his Human Spirit card to maintain his disguise and stays with the Kurihara family for the rest of his life; but still remembers what Kenzaki has done for him; for if he and Kenzaki cross paths, fate will step in and force them to fight. The show ends with an engine running and motorcycle tire tracks in the desert, most likely to be made by Kenzaki riding his Blue Spader away from humanity. After the series ended Kenzaki seemingly grew more dark and cold because of turning into an Undead as shown in Decade.

Missing Ace
In an alternate ending to the final episode, however, he was forced to seal Hajime as the Joker Undead, effectively ending the Battle Royale. Four years after, he became a garbage man who witnessed the combat of the New BOARD Riders when the Albino Joker released half of the Undead, eventually joining them back as Blade after Leangle resealed his Category Ace. He asked Leangle to unseal the Joker Undead so as to save Amane from the Albi Roaches. When she was sealed by the Albino Joker to access Jashin 14, he intended to exchange his life for her, but was pushed over by Hajime to be sacrificed instead. Once more he was forced to seal Hajime to weaken Jashin 14, then killed it and the Albino Joker in it with King Form.

Kamen Rider Decade
About 5 years later (after the series ending), Kazuma appears as one of the nine Heisei Riders in Kamen Rider Decade then battles Tsukasa after Wataru told him to destroy the nine Heisei Riders as his true goal.

All Riders vs. Dai-Shocker
To stop the fusion and destruction of worlds, Tsukasa Kadoya, announced a tournament gathering all Riders to learn who was the strongest. Blade participated in the tournament fighting against Kamen Rider Stronger.

''In the manga adaptation, Blade fought against Skyrider rather than Stronger. He was also in his Jack Form rather than the standard Ace Form.''

Rider War
Kazuma shows up in the World of the Rider War pointing out that their real enemy isn't Dai-Shocker, appearing just before his equivalent, Kazuma Kendate and the iteration of the World of Blade was destroyed by Apollo Geist's merging of the Rider Worlds. Because he has parted with his friends, Kenzaki has seemingly grown more ruthless to the point of trying to kill Decade without mercy (something Kenzaki probably wouldn`t have done before becoming an Undead) or remorse. He also has become able to transform into King Form automatically, using only the Blay Buckle and ♠A: Change Beetle Rouze Card. His transformation screen turns from blue to gold, further emphasizing that he is able to assume King Form automatically and the screen comes to him now similar to the "Open Up!" feature rather than Kenzaki running into it.

Final Chapter
In Decade: Final Chapter in his regular Ace Form he teams up with Kamen Rider Ryuki to destroy Decade now in Violent Emotion's Form but Decade turns the tables on them by turning Kenzaki into Blade Blade to destroy Ryuki and later destroys him with his Final Attack Ride resulting in both Riders being turned into cards. He is later revived after Decade voluntarily lets himself be destroyed.

OOO, Den-O, All Riders: Let's Go Kamen Riders
Kamen Rider Blade appears yet again in OOO, Den-O, All Riders: Let's Go Kamen Riders, fighting against Undead that allied themselves with Shocker and other Kamen Rider villains from the 40 years of the franchise.

Although his human form isn't shown in the movie itself and he doesn't speak, Blade is confirmed to be Kazuma Kenzaki by the movie's official website.

Kamen Rider × Super Sentai: Super Hero Taisen
Blade, along with All Riders (until Fourze), tagged along with core Super Sentai members to fight Dai-Zangyack and Dai-Shocker. He is last seen using Refleclear (Gosei Blue's Power Cards) to counter Kani Laser's attack and use his Rider Kick (it's unknown if it is Lightning Blast or Lightning Sonic) along with Decade's Dimensional Kick and Ryuki's Dragon Rider Kick.

Kamen Rider Wizard
Blade appears with all the Heisei Riders from Kuuga to Fourze, led by Decade, in a special two-parter after the finale, The Ring of Kamen Rider and Neverending Story.

Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai
Despite the fact that it was not shown in the movie itself, Blade was killed by a Showa Rider and was turned into a lockseed.

Blade later appeared when Gaim and ZX released all of the Kamen Riders from their lockseeds.

300 years later (non-canon)
In the novel, Kenzaki is trying to find a way to end his life after living for too long.

Kamen Rider Blade (video game)
Kamen Rider Blade, with Garren, Chalice, and Leangle, is playable in the Kamen Rider Blade video game.

Kamen Rider Climax Heroes
Blade appears in All Kamen Rider Climax Heroes Series. Start from Climax Heroes OOO, Blade can use Jack Form.

All Kamen Rider: Rider Generation
Blade appears in All Kamen Rider: Rider Generation and All Kamen Rider: Rider Generation 2.

Kamen Rider: Battride War
Kamen Rider Blade appears as a Main Rider in the video game Kamen Rider: Battride War, which unites the riders of the Heisei era from Kuuga to Wizard.

Kamen Rider: Battride War II
Kamen Rider Blade reappeared in Kamen Rider: Battride War II, summoned by Cinema along with the remaining Heisei Riders in order to create the "ultimate movie". Blade's stage was based of from Kamen Rider Blade: Missing Ace, with Albino Joker as his main enemy.

Forms
As Blade, he harnesses the Beetle Undead DNA from the ♠A: Change Beetle Rouze Card, utilizing the Blay Buckle Rider System to fuse with the Beetle Undead's DNA. With the Blay Rouzer saber, he can "rouse" a sealed Suit-Spade Undead's power to utilize personally or use Proper Blanks to seal the Undead.

In the final episode of Kamen Rider Blade, he mutated into a Black Joker to put the Battle Fight at a stalemate, thereby ending it without sealing Hajime. This form was never shown in the series but was released in later materials such as the S.I.C. Hero Saga and Kamen Rider Blade novels.

Device

 * Blay Buckle: Transformation belt
 * Rouze Absorber: Essential to access Jack or King Forms
 * Rouze Card: Allow Blade to attack, depending on which card is used

Weapons

 * Blay Rouzer: Personal weapon
 * King Rouzer: King Form's primary weapon

Vehicle

 * Blue Spader: Blade's Rider Machine

Ace/Jack Form Combos:
(Jack) Lightning Blast Blade's signature card combo; The combo enables Blade to deliver a lightning-powered kick to his enemy, coupling ♠5's "KICK" effect imbued with the lightning-attribute of the ♠6's "THUNDER" effect. The Jack Form version uses the added advantage of J-Blade's flight capabilities to enhance the attack.
 * Cards Required: Kick Locust (♠5) + Thunder Deer (♠6)
 * AP Cost: 2200 (♠5=1000, ♠6=1200)

(Jack) Lightning Slash This card combo allows Blade to slash his opponent with his electric-powered Rouzer, coupling the ♠2's "SLASH" effect with the lightning-attribute of the ♠6's "THUNDER" effect. The Jack Form version uses the added advantage of J-Blade's flight capabilities to enhance the attack.
 * Cards Required: Slash Lizard (♠2) + Thunder Deer (♠6)
 * AP Cost: 1600 (♠2=400, ♠6=1200)

Lightning Sonic This card combo enhances the "Lightning Blast" combo with the addition of ♠9's "MACH" effect. This activates an stronger version of Blade's "Lightning Blast" attack, which allows Blade to do his lightning-back kick at subsonic speeds for an incredible impact.
 * Cards Required: Kick Locust (♠5) + Thunder Deer (♠6) + Mach Jaguar (♠9)
 * AP Cost: 3800 (♠5=1000, ♠6=1200, ♠9=1600)

Extreme Shot Was not used in the series, so this combo's abilities remain unknown, but considering the sheer amount of the AP this combo costs, it is possibly a last-resort attack, as it would nearly completely drain Blade's AP Cache in Ace form, with a mere 200 AP left.
 * Cards Required: Thunder Deer (♠6) + Fire Fly (♦6) + Tornado Hawk (♥6) + Blizzard Polar (♣6)
 * AP Cost: 4800 (♠6=1200, ♦6=1000, ♥6=1400, ♣6=1200)

Mach-Slash Combo This card combo was used once in OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~. Blade performs a series of rapid-fire slashes in succession.
 * Cards Required: Slash Lizard (♠2) + Mach Jaguar (♠9)
 * AP Cost: (♠2=400, ♠9=1600)

King Form Combos:
Royal Straight Flush K-Blade's strongest and most used combo; Once activated, the effects of this Rouze Combo imbues K-Blade with evolved effects of ♠10, ♠J, ♠Q, ♠K, and ♠A to produce the ultimate sword-strike. It can be used as a laser blast from the King Rouzer or as a super-charged slash
 * Cards Required: Time Scarab (♠10) + Fusion Eagle (♠J) + Absorb Capricorn (♠Q) + Evolution Caucasus (♠K) + Change Beetle (♠A)
 * AP Cost: 10800 (♠10=1800, ♠J=2400, ♠Q=2000, ♠K=4600, ♠A=0)

Straight Flush This Rouze Combo summons the Blay Rouzer in addition to K-Blade's King Rouzer in a special dual-sword strike.
 * Cards Required: Slash Lizard (♠2) + Beat Lion (♠3) + Tackle Boar (♠4) + Kick Locust (♠5) + Thunder Deer (♠6)
 * AP Cost: 4000 (♠2=400, ♠3=600, ♠4=800, ♠5=1000, ♠6=1200)

Four Cards This Rouze Combo borrows the Category 6 Rouze Cards from all 4 suits and amplifies their effects with the ♠K: "Evolution Caucasus". Its combo effect imbues King Blade with the evolved elemental powers of the Category 6 cards for a finishing strike.
 * Cards Required: Thunder Deer (♠6) + Fire Fly (♦6) + Tornado Hawk (♥6) + Blizzard Polar (♣6) + Evolution Caucasus (♠K)
 * AP Cost: 9400 (♠6=1200, ♦6=1000, ♥6=1400, ♣6=1200, ♠K=4600)

Straight Also known as Straight Tempest Crash, this is Blade's Rider Kick in King form. However, this is sadly never seen within the series, due to how the other Riders of the Blade series are.
 * Cards Required: Bullet Armadillo (♦2) + Screw Mole (♣3) + Float Dragonfly (♥4) + Kick Locust (♠5) + Thunder Deer (♠6)
 * AP Cost: 4200 (♦2=400, ♣3=600, ♥4=1000, ♠5=1000, ♠6=1200)

Full House This Rouze Combo is never shown in the series, but is seen in the DX King Rouzer toyline.
 * Cards Required: Any 3 same number cards + 2 other same number cards
 * AP Cost: Depends on the card

Portrayal
Kazuma Kenzaki is portrayed by Takayuki Tsubaki (椿 隆之), who reprised his role in Kamen Rider Decade in the last two episodes and voice his character in Kamen Rider × Kamen Rider W & Decade: Movie War 2010. As Kamen Rider Blade, his suit actor was Seiji Takaiwa (高岩 成二), who has been the suit actor for the majority of leading Heisei Kamen Riders (except Kuuga and Hibiki).

Rider No.
As the leading Rider protagonist of Kamen Rider Blade, Kazuma Kenzaki (Kamen Rider Blade) is labeled Kamen Rider #20 (仮面ライダー20号) and Heisei Rider #5 (平成ライダー5号).