This article is about a/an villain in Kamen Rider Gaim.

Shinmugurun (シンムグルン) was one of the last survivors of the Femushinmu civilization, having been transformed into a dark green Over Lord Inves before slaughtering countless weaker members of his kind when his world was touched by the Helheim Forest.


He was sent by Redyue to accompany Mitsuzane to kidnap Mai. He attacks Peko to force Mai to come with them, sparing Peko. However, not realizing that the microphone picked up the incident prompts Kouta and Kaito to investigate, leading them to find out the culprit behind his injuries and what has happened to Mai. While Mitsuzane (as Zangetsu Shin) battles Gaim and Baron, Shinmugurun takes Mai away.

He is later seen battling Duke and Gaim, when the Armored Rider resistance found a way to enter an infested Yggdrasill headquarters, as a result he is destroyed by Gaim Kiwami Arms.


Shinmugurun 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. Shinmugurun is soon enough destroyed again by the combined power of Armored Riders Kurokage, Gridon, and Bravo. Kamen Rider Gaim: Final Stage


Similar to Grinsha, he is very loyal to Mitsuzane Kureshima and Redyue. He is an arrogant and cocky Over Lord, which is shown during he beat up Peko, he called the Peko weak and stupid ape.


Shinmugurun is shown has a powerful shell. He wields the Dimubu (ディムブ) axe as his main weapon. Alternately, he can summon a snake from his body to bind his opponents, which is strong enough to bind Gaim Kachidoki Arms.




  • Height: 240cm
  • Weight: 195kg


Behind the scenes


Shinmugurun was portrayed by an unidentified voice actor and an unidentified suit actor.


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

Shinmugurun was designed by Akihiro Yamada, the designer of the Green-type Inves in Kamen Rider Gaim.

Physical appearance


The origin of its name シンムグルン (Shinmugurun) might be coming from げんぶ (Genbu) , which is the Japanese name of the Black Tortoise. Given the inspiration, Shinmugurun's design is that of a snapping turtle.

External links

Icon-gaim.png 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 - Masako Suzuka
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.png - Ressha Sentai ToQgerIcon-crosswiki.png - 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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