Icon-zero-one.png This article is about a/an ally in Kamen Rider Zero-One.

Wazu Nazotoku (ワズ・ナゾートク Wazu Nazōtoku), officially spelt Was Nazotoku, was a Private Detective-Type Humagear designed by Korenosuke Hiden. He served as a prototype for Izu, and because of this he deemed himself Izu's older brother.



Wazu has a very cheerful personality, as indicated by himself who has reached Singularity. Unlike most other Humagears, he can feel certain emotions that are more common in humans. He also understands the importance of treasuring bonds, and was ultimately willing to sacrifice himself just so Izu and Aruto can continue to build that bond.


Allies/Team Zero-One:

  • Aruto Hiden: Offering his service to Aruto to track down the Dodo Magia in order to claim the corporation's innocence, in which Aruto fully trusted him. He later used himself to complete Shining Hopper.
  • Izu: Wazu's younger sister who was created after him by Aruto's grandfather. Korenosuke also implanted in him a program to protect Izu with his life, which he eventually did to complete the Shining Hopper Progrisekey in Izu's stead. On the other hand, Izu initially doubts him due of his playful and goofy nature, but she finally warms up to him, calling him 'Big Brother' before he shut down. Izu keeps Wazu's pocket watch as a memento afterwards.
  • Isamu Fuwa: An A.I.M.S. officer who doubts the detective, but follows along anyway to uncover the truth behind the event. He commented that Wazu's deduction skill is not bad, despite his playfulness.
  • Yua Yaiba: Works alongside the detective to prove Aruto's innocence.

Behind the Scenes


Wazu Nazotoku is portrayed by Kouji Tsujimoto (辻本耕志 Tsujimoto Kōji)).


Wazu's name is a play on the English verb "was". Additionally, "nazo" may be a reference to 謎, or "mystery", and "toku" may be derived from 特, or "special". When the two words combine, it would become "To solve a mystery" (謎解く Nazotoku).

  • Wazu's etymology perfectly fits with him being Izu's 'elder brother', as her name is derived from the word "is", the present tense of "was".


Icon-zero-one.png Kamen Rider Zero-One
Kamen Riders
Soreo Hiden - Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi - Ikazuchi - Naki - Gai Amatsu - Ark - S
Movie-exclusive: Soreo Hiden - S - Behru - Kamen Rider Abaddon - Izu - Lyon Arkland - Kamen Rider MetsubouJinrai (Jin, Horobi, Ikazuchi & Naki)
Stageshow-exclusive: Azu - Little Assassin
Hiden Zero-One Driver - A.I.M.S. Shotriser - MetsubouJinrai Forceriser - Zetsumeriser - ZAIA Thousandriver - Cycloneriser - Raidriser - ZAIA Slashriser - Ark Driver - Hiden Zero-Two Driver - Zetsumetsu Driver - Eden Driver - Abaddoriser - MetsubouJinrai Driver
Progrisekeys - Progrise Holder - Progrisekey Connector - Hiden Risephone - Rider Models
Attache Calibur - Attache Shotgun - Attache Arrow - Breaking Mammoth - Giger - Buaruku Sabers - Authorise Buster - Assault Grip - Thousand Jacker - Progrise Hopper Blade - ZAIA Spec - Knuckle Demolition - Nihon Ookaminotsume - Claw Assault - Horobi's Katana
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 - Ikkei Amatsu - Akane Tono
Humagears: Mageana - Ikkan Nigiro - Anna - Mashirochan - Dr. Omigoto - Z #5 - Delmo - Love-chan - Midori
A.I.s: Zea - Zat - Ai-chan - Thouser
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
ZAIA Japan
Gai Amatsu - Williamson Yotagaki
ZAIA Spec Representatives: Rentaro Tachibana - Tatsumi Arayashiki - Naoto Ichimori - Takeshi Homura - Masamitsu Yuto
Other: Daiki Kyogoku - Makio Nodachi
A.I.M.S.: Isamu Fuwa - Yua Yaiba - Naki - 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
ZAIA Enterprise (U.S.A.)
Lyon Arkland - Sold9 - Sold20 - Sold404
Monsters: Dire Wolf Sold Magia - Serval Tiger Sold Magia - Crushing Buffalo Sold Magia - Splashing Whale Sold Magia - Storming Penguin Sold Magia - Scouting Panda Sold Magia - Invading Horseshoe Crab Sold Magia
Footsoldiers: Solds
S - Behru - Buga - Mua - Lugo
Footsoldiers: Kamen Rider Abaddon
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