This article is about a/an ranger in Hikari Sentai Maskman.

"Change Power!"
―Ryo's transformation's call.[src]

"X1 Mask!"
―X1 Mask's roll call.[src]

Ryo Asuka (飛鳥 リョオ Asuka Ryō, 39): A former disciple of Chief Sugata who was chosen to be part of the M-Project, which gave him the ability to transform into X1 Mask (✕1マスク Ekkusu Wan Masuku), a predecessor to the main Maskman team.


Ryo abandoned Sugata's unit after his girlfriend Yuko was killed during an ambush by Tube, causing Ryo to doubt his ability to protect the world since he was unable to protect the woman he loved. Ryo arrives to help the Maskman team when they are overpowered by Magma Doggler. With Takeru's help, Ryo regains his self-confidence and assists the team in defeating Magma Doggler, but at the cost of his powers. At the end, he leaves the Maskman team to teach martial arts to children with a renewed sense of hope.

Ryo did not participate in the Great Legend War because he had already lost his powers.

X1 Mask

X1 Mask

Ryo Asuka transforms into X1 Mask at the command of "Change Power!", causing a line of Aura to descend over him as his suit forms around him; he does not need any transformation device.


  • Gas Buckle - Ryo can release a deadly gas from his belt buckle.
  • Lightning Attack - Ryo can produce a lightning bolt using his Aura and can direct it towards his enemies.

His prototype suit was powerful enough to block attacks of Magma Doggler.


X1 Mask's outfit consists of a green body suit with black boots, gloves and vest, a white scarf, and a face-like helmet with a jewel on the forehead. The helmet itself was based on a rejected design from an earlier draft of Maskman titled "The Fiveman" (no relation to the later series Chikyuu Sentai Fiveman), although the rest of the body is different from the concept art. The helmet is also very similar in the design to the ones by Team Battle Fever in the sense that X1's helmet has a visor for each eye and a sculpted mouth and nose.

Ranger Key

X1 Mask Ranger Key

The X1 Mask Ranger Key (X1マスクレンジャーキー Ekkusu Wan Masuku Renjā Kī) is a Ranger Key released as part of the Ranger Key Set: LOST EDITION. It is unknown if it will appear in a future crossover. Of course as with all Ranger Keys, should it exist, it would be able to transform one, i.e. Gokai Silver, into X1 Mask.

However, Ryo lost his powers beforehand, so it is unknown if his powers were to turn into a ranger key.

Behind the scenes


Ryo Asuka is portrayed by Shinji Higashi. As X1 Mask, his suit actor was Naoki Ōfuji (大藤直樹 Ōfuji Naoki).


X1 Mask concept art

  • X1 Mask, along with Magne Warrior from Choudenshi Bioman, were considered prototype "sixth warriors" seen in later "Super Sentai" shows. The 30 Sentai Encyclopedia mentions X1 Mask in the "Sixth Hero" Special File.
  • In the original "Fiveman" draft, X1 was the codename of the leader and would've worn red instead of green. The rest of the team would've been colored black, blue, yellow and pink, the same colors used in the actual Maskman roster.
  • His name was "Roy" in the Philippine dub and "Liu" in the Brazilian dub.
  • His helmet bears a striking resemblance to the Battle Fever J helmets.
  • Although he is the first sixth hero, the basis of the Sixth Hero won't happen again until five years later in 1992 when Yamato Tribe Knight Burai becomes the first official Sixth Hero in Kyōryū Sentai Zyuranger.
  • The way Ryo's name is written bears a similar structure to those of the Go-Busters. Both Ryo and the Go-Busters have their family names in traditional kanji, but their given birth names are written in katakana.
  • He shares his name with the deuteragonist of the Go Nagai manga Devilman.
Icon-maskman.png Hikari Sentai Maskman
Takeru - Kenta - Akira - Haruka - Momoko - Ryo Asuka
Masking Brace - Laser Magnum - Masky Blade - Masky Rod - Masky Tonfas - Masky Ribbon - Masky Rotor - Shot Bomber - Jet Cannon - Spin Cruiser - Mask Roaders
Commander Sanjuurou Sugata - Azuma - Princess Ial - Turboranger - Gokaiger - Kamen Rider BlackIcon-crosswiki.png
Mecha and Robos
Turbo Ranger - Masky Fighter - Masky Drill - Masky Tank - Masky Jet - Masky Gyro - Land Galaxy
Great Five - Galaxy Robo
Underground Empire Tube
Earth Emperor Zeba - Earth Imperial Commander Baraba - Earth Imperial Prince Igam - Earth Imperial Ninja Oyobu - Earth Imperial Ninja Fumin - Earth Curiosities Beast Anagmas - Energy Beast Okelampa - Thief Knight Kiros - Parasite Seira - Ungler Soldiers
Igua Doggler - Capila Doggler - Skull Doggler - Drilla Doggler - Doll Doggler - Saber Doggler - Magne Doggler - Bagil Doggler - Zora Doggler - Shinobi Doggler - Garaga Doggler - Akame Doggler - Geruge Doggler - Gamaro Doggler - Giba Doggler - Garubo Doggler - Igara Doggler - Horn Doggler - Dokuro Doggler - Kimen Doggler - Majin Doggler - Ryu Doggler - Henge Doggler - Jiruga Doggler - Beam Doggler - Rock Doggler - Deathga Doggler - Devil Doggler - Ragon Doggler - Lens Doggler - Gra Doggler - Gigira Doggler - Guron Doggler - Haniwa Doggler - Nimen Doggler - Mezume Doggler - Time Doggler - Magma Doggler - Bard Doggler - Hariga Doggler - Kinoga Doggler - Gizee Doggler - Yoroi Doggler - Gamesu Doggler - Godai Doggler - Spin Doggler - Baruga Doggler - Jigoku Doggler - Lethal Doggler
Green Rangers
Main Series

Secondary Rangers
Eagle agentDummy Clover KingPrevious ShishiRangerCopy ShishiRangerDaigo's grandsonFlower Ninja Suiren
ZokuGreenCopy TimeGreenFake ShurikengerEvil MagiGreenKurandoAtsushiSoujiroTouma

Power Sets
Main Series
MidorengerClover KingDenziGreenGreen2Green FlashX1 MaskGreen SaiGreen Eagle
DragonRangerShishiRangerOhGreenGreen RacerGingaGreenGoGreenTimeGreenShurikenger
DekaGreenMagiGreenGo-On GreenShinken GreenGosei GreenGokai GreenGreen Hippopotamus
Kyoryu GreenToQ 4gouMidoNingerZyuoh ElephantChameleon GreenPatren 2gouRyusoul GreenKirama Green
Brave Green Dino

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