This article is about a/an monster in Kamen Rider Zero-One.
For the surviving unit, see Matsurida Z No. 5.
―Little Assassin's catchphrase[src]

Assassin Humagear (暗殺ヒューマギア Ansatsu HyūmaGia), nicknamed Little Assassin (暗殺ちゃん Ansatsu-chan) by Jin, is a series of Assassin-Type Humagears created by that transforms into the Dodo Magia (ドードーマギア Dōdō Magia).


Character History


Matsurida Zetto

The Matsurida Z series dancing together.

Assassin Creation

The captured Matsurida Z series being modified.

The Little Assassins were originally part of the Matsurida Z (祭田ゼット) series, a model of Humagear created to dance in festivals. Five units of the series were captured by a group of thieves who specialize in changing the faces of Humagears. The units were given a younger appearance before then obtained them by unknown means. One unit, named Z No. 5 (ゼット5号 Zetto Go-go) by Aruto Hiden, managed to escape before then and thus only four of them came into's possession. Horobi then repurposed all four units into Assassin-Type Humagears.

Kamen Rider Zero-One

Zetto 5 Profile

Matsurida Z No. 5, the only member who escaped's clutches.

In his first appearance, Little Assassin was introduced to Jin by Horobi, who elaborates that the Humagear will become stronger over time as he learns from battles. Horobi then provides Little Assassin the Dodo Zetsumerisekey gives him the order to assassinate Kamen Rider Zero-One. After Jin and Little Assassin deploy, they are instead intercepted by Yua Yaiba, who transforms into Kamen Rider Valkyrie. Before Little Assassin can transform, Valkyrie inserts the Freezing Bear Progrisekey into his Zetsumeriser, causing it to malfunction and freeze him. Little Assassin is then transported away by A.I.M.S. personnel while Jin is distracted by Valkyrie

Yaiba reprograms Little Assassin, but keeps his directive to assassinate Zero-One. He reappears during the Mammoth Magia's attack and transforms into the Dodo Magia while being filmed by Yaiba. He fights Zero-One and Vulcan alongside the Mammoth Magia, but is destroyed by Vulcan using the Attache Calibur. His Dodo ZetsumeRize Key is recovered by Jin.

Little Assassin reappears infiltrating a hospital with a protected local Humagear network and attempts to hack one of the nurses without success. Upon returning to base, Horobi explains to a surprised Jin that he uploaded Little Assassin's backed-up data into a new body and gives him the order to assassinate Yua Yaiba instead. Little Assassin joins Jin and Horobi during the assault on A.I.M.S. HQ and transforms into the Dodo Magia again, now armed with twin swords due to incorporating data from his previous battle. The three retreat after Jin defeats Valkyrie and Horobi succeeds in stealing the Attache Weapons.

He reappears as the Dodo Magia during the attack on the hospital and and battles Zero-One. However, he was destroyed a second time by Zero-One using all of his current Progrisekeys in rapid succession, preventing him from adapting.

Betrayal and Final Evolution

Little Assassin later went undercover during the Shinya Owada incident, and learned how to assassinate by the actor himself. But, Horobi ordered him to assassinate him, causing the him to stop and think what he was doing. But, he still followed, shooting the actor with a real gun, and evolving into his Custom form, and defeating Vulcan before being taken back to Daybreak Town.

When Horobi and Jin think about what he was doing, Little Assassin went back normal, but used two silver balls to transform two Trilobite Magia into Dodo Magia Chicks. It was then, that he got his Key and transformed into the Dodo Magia Custom, but with a skull-like face. He was now set on being the only Matsurida Z hum ahead, and went to find his ‘brother.’ He encountered Zero-One, beating him, but was destroyed in his second encounter with him, his Shining Hopper form working, and was destroyed by the Shining Mega Impact Rider kick.


As Little Assassin is a creation as opposed to a hacked unit, he is little more than a robotic android with no existing template to work off of. However, his ability to adapt has caused him to inherit many of Jin's child-like traits and essentially emulates a playful child, gesticulating and adding goofy expressions to his sentences. After his first defeat, he becomes a bit more stoic and occasionally shows slight annoyance toward Jin. However, he still continues to exhibit many of the behaviors he learned from Jin.

During his training with Shinya Owada, Little Assassin becomes more self-aware and starts acting independently, ultimately culminating in him defying by attempting to assassinate Enji Matsuda for failing to meet Owada's expectations for acting. After achieving his Dodo Magia Custom form, his voice becomes much deeper and he ceases to exhibit the quirks he learned from Jin. As a miscalculation from Horobi, Little Assassin's capability on learning to further improve its skill even lead Little Assassin to believe that to become a better assassin, one must able to surpass his master, by killing them. This error existed when Horobi ordered Little Assassin to kill Shinya, unexpectedly giving the conclusion belief by Little Assassin himself.

Magia Form

Dodo Magia
KR01-Dodo Magia

Dodo Magia

―Transformation announcement[src]


  • Height: 191.3 cm
  • Weight: 107.5 kg

Little Assassin transforms into the Dodo Magia (ドードーマギア Dōdō Magia) by using the Dodo Magia Zetsumerisekey in the Zetsumeriser. 


  • Valk Sabers (ヴァルクサーベル Varuku Sāberu): Twin feather-shaped swords wielded by the Dodo Magia in his second body onward.


  • Humagear Hacking: Using a method similar to transforming into a Magia, the Dodo Magia can corrupt other Humagears and transform them into a Trilobite Magia by piercing them with tendrils.


  • Zetsumetsu Nova (ゼツメツノヴァ Zetsumetsu Novā): The Dodo Magia performs a simultaneous red energy slash with both Valk Sabers.

Appearances: Zero-One Episodes 7, 8, 9 (flashback), 10

Dodo Magia Custom
KR01-Dodo Magia Custom

Dodo Magia Custom

―Transformation announcement[src]


  • Height: 191.3 cm
  • Weight: 107.5 kg

After accumulating enough data from past experiences, the Dodo Magia evolves into the Dodo Magia Custom (ドードーマギア改 Dōdō Magia Kai).[1] It is equipped with chest armor that can withstand the Attache Shotgun's blasts, three grenade launchers on each shoulder, and smoke bomb launchers on its forearms. The Dodo Magia also continues to use the Valk Sabers.


  • Reji Slaughter (レジスローター Rejisurōtā): Six machine guns installed in the Dodo Magia's chest armor that are supplied with bullets by back-mounted magazines.
  • Valk Sabers (ヴァルクサーベル Varuku Sāberu): Twin feather-shaped swords.


  • Humagear Hacking: Using a method similar to transforming into a Magia, the Dodo Magia can corrupt other Humagears and transform them into a Trilobite Magia by piercing them with tendrils.

Appearances: Zero-One Episode 11

Dodo Magia Custom 2
KR01-Dodo Magia Custom Two

Dodo Magia Custom 2

―Transformation announcement[src]


  • Height: 209.9 cm
  • Weight: 131.4 kg

Little Assassin assumed this further evolution of his Dodo Magia Custom form after assassinating Shinya Owada. He now possesses metal balls that can be thrown at Humagears within close range to transform them into Dodo Magia Chicks. In addition to the armaments of his previous form, he is equipped with two anti-aircraft guns that are mounted on his head.


  • Helmvogel (ヘルムヴォーゲル Herumuvu~ōgeru): A device installed in the Dodo Magia's head that allows him to command the Dodo Magia Chicks simultaneously in group battles.
  • Reji Slaughter (レジスローター Rejisurōtā): Six machine guns installed in the Dodo Magia's chest armor that are supplied with bullets by back-mounted magazines.
  • Valk Sabers (ヴァルクサーベル Varuku Sāberu): Twin feather-shaped swords.

Appearances: Zero-One Episodes 12-13



Behind the Scenes


The Humagear Assassins are portrayed by Ryunosuke Matsumura (松村龍之介 Matsumura Ryūnosuke). In their original Matsurida Z state, they are portrayed by Kai Yoshida (吉田快 Yoshida Kai).


  • The Dodo Magia is named after the Dodo (Raphus cucullatus), an extinct species of flightless bird that was endemic to the island of Mauritius and was hunted to extinction by 1662.


  • The Dodo Magia is the first dodo-themed monster in the Kamen Rider series.
  • The Dodo Magia is the first and currently the most recurring Magia to appear again after being destroyed.
  • Little Assassin is the second Humagear with the ability to speak coherently as a Magia, with the first being Fukkinhoukai Taro as the Berotha Magia.
  • The Dodo Magia is the first Magia to defeat a Kamen Rider.
  • The Dodo Magia is the first and, so far, only Magia to use a finisher.
    • He is also the first Monster in the whole Rider series to ever use a finisher activated and announced by transformation gear. All Kaijins before him either used an unannounced finisher-like move (e.g. Utopia Dopant) or shouted the finisher name itself.
  • As Little Assassin learns and adapts, he gains more red streaks in his hair.
  • Little Assassin is the first, and currently the only Magia to be seen reverting to his Humagear form.



Icon-zero-one Kamen Rider Zero-One
Kamen Riders
Soreo Hiden - Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi - Ikazuchi - Gai Amatsu - Ark - Naki
Movie-exclusive: Soreo Hiden
Hiden Zero-One Driver - A.I.M.S. Shotriser - MetsubouJinrai Forceriser - Zetsumeriser - ZAIA Thousandriver - Cycloneriser - Raidriser - ZAIA Slashriser - Ark Driver-Zero - Hiden Zero-Two Driver - Progrisekeys - Progrise Holder - Progrisekey Connector - Hiden Risephone - Attache Calibur - Attache Shotgun - Attache Arrow - Breaking Mammoth - Giger - Authorise Buster - Assault Grip - Thousand Jacker - Progrise Hopper Blade - ZAIASpec
Hiden Intelligence: Korenosuke Hiden - Soreo Hiden - Jun Fukuzoe - Sanzo Yamashita
Humagears: Izu - Shesta - Soreo Hiden - Wazu Nazotoku - Subaru - Hakase Bot - Fukkinhoukai Jiro
Legend Riders: Sougo Tokiwa - Geiz Myokoin - Woz - Tsukuyomi
Humans: Norio Uozumi - Go Sakurai - Satoshi Sakurai - Choichiro Ishizumi - Seiji Tazawa - Satō - Yuta Yomura - Isao - Shinya Owada
Humagears: Mageana - Ikkan Nigiro - Anna - Mashirochan - Dr. Omigoto - Z #5 - Delmo - Love-chan - Midori
A.I.s: Zea - Zat
Ark - Horobi - Naki - Jin - Ikazuchi - Little Assassin - Azu
Monsters: Berotha Magia - Kuehne Magia - Ekal Magia - Neohi Magia - Onycho Magia - Vicarya Magia - Gaeru Magia - Mammoth Magia - Dodo Magia - Arsino Magia
Footsoldiers: Trilobite Magia - Dodo Magia Chick - Battle Magia
Other Villains:
Finis - Will
Gai Amatsu
ZAIASpec Representatives: Rentaro Tachibana - Tatsumi Arayashiki - Naoto Ichimori - Takeshi Homura - Masamitsu Yudo
Other: Daiki Kyogoku
A.I.M.S.: Eida - Ono - Degawa - Shida - Eifuku - Ito
Monsters: Crushing Buffalo Raider - Splashing Whale Raider - Dynamaiting Lion Raider - Storming Penguin Raider - Scouting Panda Raider - Fighting Jackal Raider
Footsoldiers: Invading Horseshoe Crab Raiders
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