This article is about a/an villain in Kamen Rider Gaim.
"Crushing the weak - that is the right of the strong. The proof of strength! That is all I seek!"
―Demushu explaining his brutal attack on the humans in Zawame City to Kouta[src]

Demushu (デェムシュ Dēmushu) was one of the last survivors of the Femushinmu civilization, having been transformed into a red Over Lord Inves before slaughtering countless weaker members of his kind when his world was touched by the Helheim Forest.

When the cracks opened the way to Helheim's next target, Earth, Demushu seeked to crush the weak of the human civilization, gaining a rival in Kaito Kumon (Armored Rider Baron). However, he ultimately fell to the power of Gaim's Kiwami Arms.


When Kaito was searching for Demushu, the Over Lord Inves summons several Elementary Inves to attack Baron so he can escape. Yggdrasill's Secret

It later picks up a pioneer plaque and a Japanese Dictionary that Kaito left to lure it out. Demushu soon meets Kaito in the ruin and talks in a strange language. He also only responds by tossing the plaque and ripping the dictionary, leaving Kaito no choice but to fight. However, Demushu proves to be very strong, even controlling the Helheim's plants easily and pinning Baron to the ground. Now Depart for the Front Line! Kachidoki Arms!

Before the Over Lord could finish off Baron, Marika appears to distract Demushu as they retreat. Later, Sagara, as a hologram approached the Over Lords as he somehow knew what are they saying. As Gaim searches for the Over Lords in the ruins, Demushu fought him without mercy while Redyue was still reading the dictionary. Before Demushu could finish off Kouta, Redyue stops him and binds Kouta with the Helheim plants as they leave, dropping the Rider as a result of their absence. The New Formidable Enemy: Over Lord

Demushu was found by Kaito again, however Baron managed to fight back in Lemon Energy Arms as the Over Lord was overpowered. While fighting, the Over Lord could finally speak Japanese much to Baron's surprise. Before they could finish each other, Gaim appears to stop them before Redyue convinces Demushu to retreat. Baron's Genesis Transformation!

Later, Demushu attacked the researchers as he was searching for Kaito. However while fighting Zangetsu Shin and Gaim, Rosyuo ordered the Over Lord telepathically to retreat as Demushu couldn't handle the sound wave from Rosyuo. When You Know the Truth...

He was later punished by his master for attacking the humans. The Betrayal of Zangetsu

Demushu arrive where Gaim and Zangetsu Shin were as he started to attack them. Sigurd appears to fight the Over Lord and demanded him about the Forbidden Fruit. While fighting, a Crack started to open as he enters it which lead him to Zawame. The Over Lord King

Arriving in Zawame City, Demushu starts to destroy the city, seeing that the city is very ugly. He later fight both Gaim and Baron, but he managed to defeat them. He also explains to Kouta that he lives for battle and those who were weak won't survive. An enraged Kouta becomes Gaim Kachidoki Arms and battles with Demushu. Demushu would have been defeated, if only Marika and the Kurokage Troopers didn't interfere with Gaim. With Gaim overpowered, Demushu takes the chance to defeat him. After Kaito escapes with an injured Kouta, Demushu battles Marika and the Kurokage Troopers, with Baron Lemon Energy Arms and Knuckle soon join the fray. Whereabouts of the Forbidden Fruit

"I don't accept it! I don't! I won't lose to a damn monkey like you!"
―Demushu's final words.[src]

After he gets injured from Kurokage Troopers, Baron, Knuckle and Marika's attacks, Demushu flees to the safe place where the Helheim fruits have recently grown and eats it, changing into an Evolved Form. Now stronger than ever, Demushu battles the remaining Riders on Earth and defeats them shortly after Duke left the Riders to die and the Kurokage Troopers is disbanded and before Kouta arrived. Kouta arrived to help the Riders and battles Demushu with a new power he received as Demushu witnesses Gaim's Ultimate Form as Kiwami Arms. Even though he's already more powerful, Demushu lost to Gaim Kiwami Arms' power and he was destroyed by Gaim Kiwami Arms' Hinawa Daidai Musou Zan. The Strongest Power! Kiwami Arms

Super Hero Taisen GP

Shocker army GP

The Shocker army.

Through an alteration to history rewritten by Shocker's History Modifying Machine, Demushu is among the many monsters that serve the evil organization that rules the world in this alternate timeline created by Kamen Rider 3's assassination of the Double Riders in 1973. During the final battle against the Kamen Riders, Demushu is destroyed by Gaim Orange Arms' Burai Kick, however, not before he (alongside several other kaijin) manage to kill Kamen Rider Mach Super Hero Taisen GP: Kamen Rider 3

Kamen Rider Brain

Kaijin teamup (KR Brain)

Demushu becomes a member of Mu and fighting Kamen Rider Brain in Brain's dream. Kamen Rider Drive Saga: Kamen Rider Brain

Other Events

Kamen Rider Gaim: Final Stage


Demushu makes an appearance in Kamen Rider Gaim: Final Stage. He is revived by Maja and helps subdue Kouta Kazuraba alongside his fellow Over Lords and the deceased, mind-controlled Armored Riders. When Kouta revives all of the fallen Armored Riders to his side, the battlefield becomes open warfare with the Riders, Maja, and the Over Lords all fighting. Demushu is later destroyed by Kaito.


Ripping Janpanese Dictionary

Demushu ripping the Japanese dictionary

Unlike Redyue, Demushu thirsted for power. He likes battle more than anything else. As shown, he was hot-tempered and more of a musclebound brute than an intellectual, refusing to read a Japanese dictionary offered by Redyue and destroying another beforehand. He also wouldn't hold back and would pull out his full power towards his enemies.

Even when Kouta tried to talk with him, Demushu brutally attacked him. A bit similar to his human Rider counterpart from Earth, Kaito, he sees the weak as prey and doesn't deserve to be alive and he had the right to kill the weak to become the strongest of all. What he had already done was nothing but for his own satisfaction, making Kouta now see that there's no point talking with the Over Lords anymore. He also often referred to Humans as "Apes" and saw them as beneath him, viewing defeat or injury at the hands of Armored Riders as an insult and outrage to be beaten by them.


Deemushu Inves

Over Lord Inves Demushu

  • Height: 250cm
  • Weight: 191kg

Originally one of the humanoid Femushinmu, Demushu was among those who were transformed into Over Lord Inves (オーバーロードインベス Ōbārōdo Inbesu) when the Helheim phenomenon touched his world. As one of the strongest of his kind, Demushu slaughtered many weaker Over Lords with his equals, driving the Femushinmu to near-extinction.

Plants bind attack

Demushu controls the plants to bind Kouta

Powers and Abilities
Brute Strength
Demushu possess incredible strength which made him strong enough to rip off a dictionary.
Durable Exoskeleton
Demushu's skin was covered with a durable exoskeleton that enable him to resist fatal injury.
Capacity Empowerment
Even after multiple times being defeated, his body would empowered to adapt into such fatal injury.
Vibration Manipulation
Demushu can generate and manipulate shockwaves and vibrations either in the form of projectiles, teleportations or super speed.
Helheim Plant Manipulation
Demushu can manipulate nearby Helheim vines for his own liking.
Sheimu (シェイム Shēimu)
Demushu's personal sword

Appearances: Episodes 21, 23-32

Demushu Evolved Form

Evolved Demushu

Seeking greater power, Demushu accessed an Evolved Form (進化体 Shinka-tai) by eating premature Lockseeds. His transformation was signified by the growth of two horns on his shoulders.

Powers and Abilities
Brute Strength
Demushu possess incredible strength which made him strong enough to toss around multiple Armored Riders with ease.
Durable Exoskeleton
Demushu's body was covered with a durable exoskeleton that enable him to resist almost any injury.
Capacity Empowerment
Even after multiple times being defeated, his body would empowered to adapt into such fatal injury.
Vibration Manipulation
Demushu can generate and manipulate shockwaves and vibrations either in the form of projectiles, teleportations or super speed.
Helheim Plant Manipulation
Demushu can manipulate nearby Helheim vines for his own liking.
Attack Reversal
Thanks to the empowerment from his evolution, Demushu can turn an attack back on the attacker. As shown, he used his Sheimu to block the energy attacks of the Armored Riders and redirect the attacks back at them.
From the horns on his shoulders, Demushu can fire a red lightning attack.
Sheimu (シェイム Shēimu)
Demushu's personal sword

Appearances: Episode 32, Super Hero Taisen GP

Behind the scenes


Demushu is voiced by Tomokazu Sugita (杉田 智和 Tomokazu Sugita), who previously voiced the male members of the Kivat-Bat family in Kamen Rider Kiva.[1]

His suit actor is Daisuke Satō (佐藤 太輔 Satō Daisuke), who is also served as suit actor for Kamen Rider Ryugen.[2]


Demushu concept art

Concept art of Demushu from Kamen Rider Gaim: Official Perfect Book.

Demushu was designed by Niθ, the designer of the Red-type Inves in Kamen Rider Gaim.


The origin of his name デェムシュ ( Demushu) might be coming from しんく ( Shinku), which means "Crimson" in Japanese. This is foreshadowing that all of his kind, that is, Red Inves, are crimson in color.


Main article: Femushinmu Language

Demushu and the other Over Lords seemingly have their own language. This is similar to the Gurongi Language from Kamen Rider Kuuga, the Undead from Blade and Fangire from Kiva, in which an enemy faction has its own language that the Japanese do not understand. As with the Gurongi, Japanese subtitles aren't provided for Demushu's speech, it is unknown if they will be provided in a later release such as a TV rerun or DVD release.


  • Demushu is similar to Phoenix from the previous series in various ways:
    • They are both are hot-headed chief villains with a red color in their Kajin Forms.
    • They both become stronger after each fight.
    • They were also the first of the chief villains to be taken down by the leading Rider once he accessed a powerful new form.
  • Demushu is considered an Over Lord counterpart to Kaito Kumon, as they both view that the weak are simply the prey for the strong, and they have a dominant red color in their forms.
    • He is also considered an archenemy to Kaito because they have confronted each other the most throughout the Over Lord Saga.
  • Demushu is also the only Over Lord to evolve.


Main article: Demushu/Appearances


  2. Kamen Rider Gaim Character Book VOL.ONE - FOR BATTLE -

External links

Icon-gaim Kamen Rider Gaim
Armored Riders
TV Series: Kouta Kazuraba - Kaito Kumon - Mitsuzane Kureshima - Takatora Kureshima - Hideyasu Jonouchi - Ryoji Hase - Oren Pierre Alfonzo - Zack - Kurokage Troopers
Movie/Special/Stageshow-exclusive: Bujin Gaim - Ren Aoi - Lapis - Kougane - Touka Akatsuki - Shura - Kugai Kudo - Maja
New Generation Riders
TV Series: Takatora Kureshima - Ryoma Sengoku - Yoko Minato - Lock Dealer Sid - Kaito Kumon - Mitsuzane Kureshima
Movie-exclusive: Peko - Alfred
Rider Gear
Sengoku Driver - Genesis Driver - Lockseeds - Armor Parts - Arms Weapons - Musou Saber - Sonic Arrow
Rider Machines
Sakura Hurricane - Rose Attacker - Dandeliner - Tulip Hopper
TV Series: Mai Takatsukasa - Yuya Sumii - Akira Kazuraba - Chucky - Rica - Rat - Peko - Kiyojiro Bando - Iyo - Kikaider (REBOOT)
Movie-exclusive: Ieyasu - Shu Aoi - Saki Aoi - Shapool - Azami
Beat Rider Teams: Team Gaim - Team Baron - Team Raid Wild - Team Invitto - Team Red Hot - Team Soten - Team Pop Up - Team Spingere - Team Boost - Team Mouryou - Team Severe Beat
Kamen Riders: Takeshi Hongo - Keisuke Jin - Ryo Murasame - Takumi Inui - Momotaros - Tsukasa Kadoya - Shotaro Hidari - Haruto Soma - Shinnosuke Tomari - Takeru Tenkuji - Emu Hojo - Parado - Sento Kiryu - Sougo Tokiwa
Other Heroes: Daigo KiryuIcon-crosswiki - Ressha Sentai ToQgerIcon-crosswiki - Kikaider (REBOOT)

Locations: Zawame - Charmant - Yggdrasill Tower

Yggdrasill Corporation
Takatora Kureshima - Mitsuzane Kureshima - Ryoma Sengoku - Lock Dealer Sid - Yoko Minato - DJ Sagara - Amagi Kureshima
Remnant groups: Black Bodhi - Neo Baron

Zawame City Restoration Bureau

Femushinmu (Over Lord Inves): Rosyuo - Demushu - Redyue - Dyudyuonshu - Grinsha - Shinmugurun - Over Lord Queen
Lapis - Kougane
Other Over Lords: Lord Baron - Tyrant
Advanced Inves: Byakko Inves - Seiryu Inves - Hekija Inves - Shika Inves - Kamikiri Inves - Komori Inves (Mutant) - Inoshishi Inves - Lion Inves - Yagi Inves
Elementary Inves

Helheim (Forest) - Forbidden Fruit - Man of the Beginning - Woman of the Beginning - Femushinmu Planet - Planet of Helheim

Other Villains
Grasshopper Monster - Badan Empire - Pitcher Plant Monster - Megahex - Hakaider (REBOOT)
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