Kamen Rider Wiki
Icon-faiz.png This article is about an organization in Kamen Rider 555.

"Life is frail. Life is limited. So, why don't you think about true life? Be smart! True life is your start!"
―Smart Brain's commercial slogan[src]

Smart Brain, Inc. (スマートブレイン社, Sumāto Burein-sha) was a company that is a front for a group of Orphnoch that sees themselves as the master race and are dedicated to the genocide of the human race and increase of the Orphnoch population. They experiment in making their race even more powerful and developing weapons that only Orphnoch can use. Smart Brain is ironically where the Rider Gears were developed from. This is the largest coordinated group of Orphnoch ever seen, and in the movie Paradise Lost they seem to have formed a de-facto world government after the Orphnoch revolution, only having the resistance faction known as Human Liberation Army as their sole opposition.


  • Wirepullers of Smart Brain
  • Kyouji Murakami: Third CEO. He defected after Hanagata returned and was deceased for sacrificing himself towards the Orphnoch King.
  • Hanagata: First CEO. He self-defected and was deceased due to an Orphnoch's life limit.
  • Smart Lady: The secretary/mascot.
  • Leo: Ace soldier. The user of Emperor Gear, Psyga in Paradise Lost only. Deceased in the hands of Takumi Inui as Faiz.
  • Riotroopers: Troopers created by Hanagata on purpose to stop the birth of Orphnoch King and entrusted to Yuji Kiba. Unfortunately, Hanagata was unaware that Yuji had self defected himself from humanity and the troops were used as Smart Brain's intended.
  • Eiichi Toda: Second CEO. Deceased after fatally injured by Faiz's Crimson Smash.
  • Yuji Kiba: Initially a renegade. Later become the fourth CEO to be chosen by Hanagata in purpose to change the goal of Smart Brain to purely help humanity. Unfortunately, Hanagata didn't notice that Yuji had discarded his humanity until Takumi snapped Yuji's humanity back and was deceased in the climatic fight against the Orphnoch King. Yuji becomes an ace soldier to use the strongest Emperor Gear, Orga after being deceived by Kyoji and Smart Lady that humanity had deceived him in Paradise Lost.


  • Smart Brain Finance
  • Smart Brain Entertainment
  • Smart Brain Beverage
  • Smart Brain Distribution
  • Smart Brain Motors
  • Smart Brain Material

Behind the scenes



Icon-faiz.png Kamen Rider 555
Kamen Riders
Kamen Rider Faiz: Takumi Inui - Yuji Kiba - Akai - Naoya Kaido - Itsuro Takuma - Masato Kusaka
Kamen Rider Kaixa: Masato Kusaka - Kouta Takamiya - Kiyotaka Nishida - Takahisa Shindo - Saeko Kageyama - Yuji Kiba - Keitaro Kikuchi (Paradise Lost) - Higashino (Manga) - Nishijima (manga) - Mayu (manga) - Kaixa Corps (manga) - Nozomi Munemiya (manga)
Kamen Rider Delta: Shuji Mihara - Saya Kimura - Kitazaki - Masato Kusaka - Takumi Inui - Rina Abe - Kyouji Murakami - Kyosuke Tokumoto - Ken Arai - Yuki Kawachi - Kikyou Nonomura (manga)
Riotrooper - Leo - Yuji Kiba
Stageshow-exclusive: Kamen Rider Alpha - Kamen Rider Beta - Kamen Rider Gamma - Dark Rider - Dark Slasher
Rider Arsenal
Mission Memories - Smart Pad
Faiz (Φ): Faiz Driver - Faiz Phone - Faiz Pointer- Faiz Shot - Faiz Edge - Faiz Axel - Faiz Blaster - Faiz Sounder
Kaixa (Χ): Kaixa Driver - Kaixa Phone - Kaixa Pointer - Kaixa Blaygun - Kaixa Shot
Delta (Δ): Delta Driver - Delta Phone - Delta Mover
Riotroopers (O): Smart Buckle - Axelaygun - Flying Attacker (Decade)
Psyga (Ψ): Psyga Driver - Psyga Phone - Psyga Tonfa Edge - Flying Attacker
Orga (Ω): Orga Driver - Orga Phone - Orga Stlanzer
Concept Systems
Kamen Rider Neo-Alpa (α) - Kamen Rider Seeda (ϑ) - Kamen Rider Pyron (π)
Auto Vajin - Side Basshar - Jetsliger - Gyro Attacker
Mari Sonoda - Keitaro Kikuchi - Yuka Osada - Naoya Kaido
Ryusei School
Hanagata - Rina Abe - Kyosuke Tokumoto - Shoji Inukai - Kiyotaka Nishida - Takahisa Shindo - Haruko Kamijo - Asami Ito - Ken Arai - Yuki Kawachi - Shingo Ota - Saya Kimura
Smart Brain
Wirepullers of Smart Brain
Kyoji Murakami - Smart Lady - Eiichi Toda
Orphnoch King: Arch
Lucky Clover: Saeko Kageyama - Itsuro Takuma - Kitazaki - Mr. J - Aki Sawada
Main: Goat - Wolf - Horse - Crane - Snake - Rose
Minor: Stingfish - Elephant - Ox - Mantis - Cactus - Squid - Owl - Scarab - Snail - Equisetum - Flyingfish - Armadillo - Toadstool - Scorpion - Dolphin - Worm - Seacucumber - Rabbit - Frog - Stinkbug - Swordfish - Rhinocerosbeetle - Stagbeetle - Octopus - Pigeon - Barnacle - Okra - Sloth - Frilledlizard - Crab - Bat - Coral - Butterfly - Giraffe - Longhorn - Pelican - Wild Boar - Slug - Mole - Moose - Lion - Lion (II) - Elasmotherium
Decade-exclusive: Tiger

All items (25)