This article is about a/an rider in Kamen Rider Ryuki.
For the A. R. World version from Kamen Rider Decade, see Kamen Rider Imperer (A.R. World).
For the New User of Kamen Rider Imperer in Kamen Rider Zi-O, see Ishida.
"Why is this happening? I... I... just wanted to be happy..."
―Mitsuru's final words before vanishing.[src]

Mitsuru Sano (佐野 満 Sano Mitsuru) was Kamen Rider Imperer (仮面ライダーインペラー Kamen Raidā Inperā), one of the 13 Kamen Riders in the tokusatsu TV series Kamen Rider Ryuki.


Kamen Rider Ryuki

Early Life

Although Mitsuru came from an affluent family, he worked in a parking garage, occasionally cleaning rich people's cars. His father sent him out into the world so that he could learn the hardships of life and not be spoiled by a rich upbringing. However, due to his poor lifestyle, he believed friendship, respect, and love could be bought, and thus accepted Kanzaki's proposal to become a Kamen Rider in order to become rich and lead a happy life. He became a mercenary of sorts, attempting to sell his strength as a Kamen Rider to the various factions within the remaining Riders.

Entering the Rider War


Silhouette of Kamen Rider Imperer

Later Zolda recovers and joins the battle on foot. The number of monsters increase to more then two. Ryuki appears in Survive and uses a Final Vents to wipe out all of the monsters. He then tells Alternative Zero that he saved his family. Tiger tries to tell Ryuki that Alternative Zero doesn't care but Ryuki replies back that he wanted to save them, so he saved them. Ouja restarts the fighting but all of them begin to fade. Back at ORE Journal, The Chief Editor receives blown-up versions of Shimada's pictures and insists that the Monster in the Glass is not a distortion but in fact real. They establish that their are monsters in the glass. The large group of Rampant Monsters that have been running around Mirror World previously react to a new Rider with horns. Memories of an Older Brother and Younger Sister

Search a contract with other Riders


The monsters that attacked the group of Riders are shown to be the Contract Monsters of the new Rider. As they begin to fade, Tiger & Alternative Zero leave Mirror World and the rest follow closely behind including Imperer. Hideyuki calls his family to ensure their safety but does it in front of Tojo, Mitsuru goes and visits Hideyuki & Tojo and offers the same services for a price. In the middle of bargaining, they sense a monster. Mitsuru enters Mirror World to show off his skills as an ally. He first approached Shinji Kido and Ren Akiyama, flattering them with praise after seeing them fight. Though Shinji was fooled, Ren brought him back to his senses and refused him. Sano attempted to appeal to even Shuichi Kitaoka and Takeshi Asakura, failing to gain employment from either. Sano finally turned to Satoru Tojo and Hideyuki Kagawa for assistance. Kagawa, though knowing Sano did not fully understood his motives, allowed Sano to work with him and Satoru,is view how Mitsuru destroyed a Sheerghosts demonstrating how his power is finally he and Satoru and Hideyuki ambushed to Ryuki that recently appears. Imperer

Contract destroyed


Sano's contract with Kagawa was later cut off when Kagawa was killed (by Satoru), Ren is enraged by Shinji's decision to include Mitsuru as his comrade; but he still kept Satoru as a good friend and even hostelled him when Satoru was injured from battles before. It was then Satoru confessed his convictions and called Sano a friend. Mitsuru, after being dumped as an ally by Tojo attempts to ally himself with Shinji, Kitaoka and Asakura, but none of them works,later he watches the battle between Satoru as Tiger and Asakura as Ouja ,to later have a little talk with him and rescue Satoru.Room 401 The Hero Fights



Sano in his final moments.

After his father died, he inherited his father's business and became the boss of a major company. Because of his new found lifestyle, he wanted to give up the Rider war and enjoy his wealth. However, Kanzaki reminded him of his contract with Gigazelle and its fellow Zelles as well as what would happen to Sano if he did not fulfill his side of the contract with them. Shaken, Sano decided to use part of his inheritance to buy the services of the other Riders, as he himself had tried to offer. Showing up at their doorstep with a suitcase of contract money, he appealed to Shinji and Ren, but was flatly refused. Sano tried the same tactics on Kitaoka, and seemingly succeeded, but Sano cancelled the contract days later after deeming Kitaoka "unreliable." He meet a girl, by one of those business associates. The girl's name was Yuri, a busines man's lovely daughter. When they were alone she apologized to him for her father acting weird, but he said he was delighted and flattered, and asked if they could see each other. Luck had stumbled him into a sincere girl. Then the gazelle attacked out of a passing car. Mitsuru headed into the Mirror World, found his herd was hungry, and went after Ryuki. At any rate, Tiger turned on him and nearly killed him. Though Satoru was grateful to Sano for caring for him, he later back-stabbed Sano, who was later wounded and left for dead. Despite having been attacked, Ryuki saved him and told him to run away. Though he survived the attempt on his life (which Satoru thought he did finish Sano off), Sano was ambushed by Ouja while attempting to make his escape back to the real world. Mitsuru staggered through the Mirror World trying to find a way out, but his deck was destroyed from the earlier attack, making him unable to leave the Mirror World and dissolve within minutes waiting miserably in the vain hope that he would come back to Yuri, screaming and begging for help, but with her unable to hear or see him. He died, holding a shard of a mirror in his hands and screaming in anguish at the life he could have had.Glassy Happiness

Imperer, like Kamen Rider Gai and Kamen Rider Scissors, as well as the Alternatives, did not reappear in the epilogue after Kanzaki reverted time. But it can be implied that Mitusuru is revived too as Jun was revealed to return in the future of the next Rider war.

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

Kamen Rider Imperer in Legend War

Kamen Rider Imperer 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 Heisei Generations FOREVER


Kamen Rider Imperer appears as a toy, when Sento and Sougo they find Ataru he 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  

Appearances in other media

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

Type35. - I Like the Mystery of the Final Vent!


Kamen Rider Imperer appears with Stronger, Drake and OOO Takatorata combo,according by Kivat-Bat the 3rd, Imperer is considered a perfect boyfriend for the girls.Type35. - I Like the Mystery of the Final Vent!

Type39. - Ice Pop! Your White Self Matures Later!


Kamen Rider Imperer appears with Chalice Wild Form, Raia and TheBee,according by Kivat-Bat the 3rd, Imperer is considered a perfect boyfriend for the girls.Type39. - Ice Pop! Your White Self Matures Later!

Video Game appearances

Kamen Rider Ryuki (Video Game)


Imperer as seen in the Videogame

Kamen Rider Imperer appears as playable character in the PS1 game,like that the others Ryuki Riders also he summons his Contract mosnter Gigazelle and using his Advent cards and his finisher Drive Divider.

Climax Heroes Series

Kamen Rider Super Climax Heroes


Kamen Rider Imperer is an unlockable and playable character with the other Kamen Riders in Super Climax Heroes.

Kamen Rider Battle Ganbaride


Kamen Rider Imperer card

Kamen Rider Imperer appears with other Kamen Riders and Monsters in Kamen Rider Gabanrider.

Kamen Rider Riderbout


Imperer as seen in Kamen Rider Riderbout

Kamen Rider Imperer appears as a playable character with the other Heisei and Showa kamen Riders in Kamen Rider Riderbout.

Kamen Rider Break Joker

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Kamen Rider Imperer Break Poker Card

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

Kamen Rider Batton-Line


Imperer in Batton-Line

Kamen Rider Imperer appears as a playable character in Kamen Rider Batton-Line among other Riders in the game.

Kamen Rider Buttobasoul


Kamen Rider Imperer Medal

Kamen Rider Imperer is a playable character in Kamen Rider Buttobasoul.

Other Game appearances

Battle Spirits


Kamen Rider Imperer Battle Spirits card

Kamen Rider Imperer appears with other Kamen Riders and Monsters in Battle Spirits.


Mitsuru is an easygoing person and lived his life by doing anything to get his money, even becoming a Kamen Rider to do so. While he was not greedy, he believed that happiness could be bought with money.

Mitsuru is not an idiot in the battlefield, as he tends to take a look at his opponents before taking action. Before joining Hideyuki's group and making his proper debut, he analyzed the capabilities of all participating riders by sending a horde of his Zelle Monsters and hiding in the bushes. His boasts about his strength are not to be taken lightly, as he always managed to handle most of his opponents with a bit hardship as long as he kept his composure.

His sincerity towards people is pure, whether he is rich or not. Before inheriting his father's business, he did his best to help others. After becoming the head of his father's company, he still gave money to those who did favors for him.

Despite having many positive traits, Mitsuru is not without flaws. He has a hard time to trust and be trusted by others and always using money as his way to communicate which is leading Shinji and Ren to distrust him. Kitaoka also used Mitsuru to deliver a mocking letter towards Asakura by tricking him to ask on joining a better force which leading Mitsuru to be beaten by Asakura instead, albeit not to death. Of course, Mitsuru distrust Kitaoka deeply later on.

His next flaw is his fate. Despite his best to live as a good person, his decision to join the Rider War had doomed him. Shiro coldly warned Sano that he was not able to retire from the Rider War, much to Mitsuru's terror. When he helped Satoru and accepted him as his best friend, he didn't know about Satoru's twisted complex about the hero ideal which leads him to be injured, followed by his demise at Asakura's hands.

Fighting Style

Imperer is a melee based Rider. He utilizes Muay Thai - Style attacks such as knee strikes enhanced by his Gazellevisor. He also uses the Spin Vent as his primary weapon. However, his biggest fighting advantage is in numbers, since his Contract Monster Gigazelle is accompanied by Megazelle and Omegazelle (later additions were Magazelle and Negazelle). His significant number of Contract Monsters can easily overwhelm other Riders.

However, Imperer's numbers strategy can be disrupted, forcing Imperer to fight Riders by himself. Another weakness is that the several Zelle monsters which assist Imperer in battle merely follow Gigazelle's orders, and often prove themselves to be inconsistent, randomly helping or attacking Imperer.

Kamen Rider Imperer

Kamen Rider Imperer

Kamen Rider Imperer

Rider Statistics

  • Rider Height: 195 cm.[1]
  • Rider Weight: 94 kg.[1]

Rider Senses:

Ability Parameters:

  • Punching Power: 10 t.[note 1]
  • Kicking Power: 20 t.[note 2]
  • Maximum Jump Height: 50 m.[1]
  • Maximum Running Speed: 100 m. per 5 sec.[1]

Special Attacks:

Sano can transform into Kamen Rider Imperer using his Advent Deck and V Buckle upon forming a contract with a Gigazelle. His Visor, the Gazellevisor (ガゼルバイザー Gazeru Baizā), is mounted on his right knee. Imperer's punching power, kicking power, and running speed are identical to Ryuki's, while his jump height is significantly higher.

Through the use of the Spin Vent Advent Card, Imperer can arm himself with the Gazelle Stab (ガゼルスタッブ Gazeru Sutabbu), an arm-mounted pair of drills derived from Gigazelle's horns and forehead.

By using his his Final Vent, Imperer can execute his finisher, the Drive Divider (ドライブディバイダー Doraibu Dibaidā), in which he summons a horde of Zelle Mirror Monsters to surround him and stampede the enemy. Imperer then emerges from the crowd and delivers a knee strike to the opponent's head.

Appearances: Ryuki Episodes 40-44, Let's Go Kamen Riders, Heisei Generations FOREVER (as a toy).

Contract Monsters


  • Advent 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
  • Gazellevisor - Imperer's Visor that enables him to use Advent Cards
  • Gazelle Stab - Personal weapon


  • Rideshooter - Motorcycle used by any Rider to enter the Mirror World

Behind the scenes


Mitsuru Sano is portrayed by Takashi Hyuga (日向 崇 Hyūga Takashi). As Kamen Rider Imperer, his suit actor was Masashi Shirai (白井 雅士 Shirai Masashi).


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Kamen Rider Imperer concept art


  • His name is based on "Impala". The name is also based on "Imperial " since he commands more than one gazelle-like Contract Monsters.
  • His Rider alias could also be romanized "Impaler" (a reference to his impaling attacks) and is pronounced as such the one time it is said in the series.
  • He shares the same last name as Tony Sano, the actor who plays his American Counterpart. Interestingly, the last name is also shared with Gaku Sano, who would play as a Rider twelve years later.
  • Imperer is the first Rider to use a drill for a weapon.
  • Imperer is one of three riders in the series who has their Visor attached to their suit, the other two being Gai whose Visor is on his shoulder, and Verde whose Visor is mounted on his thigh. The same is said for their respective American counterparts.
  • Imperer is unique among the other Riders in that his color scheme does not match that of his contract monster. Gigazelle is primarily purple-colored, but Imperer's color scheme is brown.
  • Like other Mirror Riders, he died an ironic death: He actually achieved his wish of becoming happy and had no more need of the Rider War to keep it, but he was forced to fight either way and eventually died. Aside from that, Sano was a Rider who relied on others in order to stay alive, but he died after betraying Shinji because Tojo betrayed him, and was eventually killed by Asakura, all three being Riders he initially wanted to partner up with.
  • Coincidentally, he shares his name with a character from the soccer manga series Captain Tsubasa.
  • Mitsuru Sano is the only Ryuki Rider that has few cards in his Advent deck.




  1. 200 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  2. 400 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  3. 2000 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  4. 5000 AP[1], conversion: 1 AP (Ryuki) = 20 t.
  5. 4000 AP[3], conversion: 1 AP (Ryuki) = 20 t.

External Links

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
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