This article is about a/an ally in Kamen Rider Zero-One.

An Angel in White Mashirochan (白衣の天使ましろちゃん Hakui no Tenshi Mashirochan)[1][2] , or simply Mashirochan (ましろちゃん Mashirochan), was a Nurse Type Humagear. She was one of the first Hospital staff Humagears reprogrammed by and turned into a Trilobite Magia through a hacked Giger Unit.


Mashirochan was the Nurse Humagear in the National Medical Hospital (国立医電病院 Kokuretsuiden Byōin) assigned for Aruto's check-up. After Izu introduced her to the president, Mashirochan proceeded with the tests. After Aruto's check-up, she caught a pregnant patient that was fell.

She was later assigned to assist in Yua's medical after attacked A.I.M.S. HQ. After which, she was found to begin showing signs of gaining her Singularity when she diverted from her original programming when she offered Isamu a medical test that was not in her registered programming.

She was then escorted by the four to Hiden Intelligence for a full scan, which showed that she was still functioning properly.

After heading back to the hospital with the others due to a Giger Unit attacking the Hospital's Network Building, Mashirochan fell victim to one of the reprogramming coils from the Giger, turning her into a Trilobite Magia.

Magia Form

KR01-Trilobite Magia

Behind the Scenes


Mashirochan is portrayed by Suzuka Ohgo (大後 寿々花 Ōgo Suzuka).



Mashirochan's Data

  • Mashirochan's Humagear No. is No.0009212.[1]
  • She had two years worth of running activity.[1]
  • Her height was based on her actress' actual height, rounded-off.[3]
  • The "Mashiro" (ましろ) part of her name means "Broad-minded" or "Pure White".



  1. 1.0 1.1 1.2 1.3 1.4 Episode 8: The Destruction Begins Now. Height and Weight shown during Mashirochan's system scan in Aruto's office. Description on her given name was also included.
  2. Kamen Rider Zero-One Episode 8 Summary and Guest Character Information[ archive]
  3. 3.0 3.1 Suzuka Ohgo's Tweet about her height.archive
Icon-zero-one Kamen Rider Zero-One
Kamen Riders
Soreo Hiden - Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi - Ikazuchi - Gai Amatsu - Ark
Movie-exclusive: Soreo Hiden
Cycloneriser - Hiden Zero-One Driver - MetsubouJinrai Forceriser - Zetsumeriser - A.I.M.S. Shotriser - ZAIA Thousandriver - Raidriser - ZAIA Slashriser - Ark-Zero 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 - ZAIA Spec
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 - Lovechan - Midori
A.I.s: Zea - Zat
Ark - Horobi - Naki - Jin - Ikazuchi - Little Assassin
Footsoldiers: Trilobite Magia - Dodo Magia Chick - Battle Magia
Monsters: Berotha Magia - Kuehne Magia - Ekal Magia - Neohi Magia - Onycho Magia - Vicarya Magia - Gaeru Magia - Mammoth Magia - Dodo Magia - Arsino Magia
Other Villains:
Finis - Will
Gai Amatsu
ZAIA Spec 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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