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Villains Wiki
Villains Wiki
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This villain was proposed but was rejected by the community for not being heinous enough or lacks what is necessary to be a Pure Evil villain. Therefore, this villain shall be added to our "Never Again List", where proposed villains rejected by the community shall be placed to prevent future proposals of the same evil-doer. They can be proposed again (with the permission of an administrator) if new elements appear in their series that can change their status as non-PE villains.

Any act of adding this villain to the Pure Evil category without a proposal or creating a proposal for this villain without the permission of an administrator will result in a ban.
Additional Notice: This template is meant for admin maintenance only. Users who misuse the template will be blocked for a week minimum.

Villain Overview

I am Hiryu Kakogawa. Sougo Tokiwa, we are fated to cross paths countless times.
~ Hiryu introducing himself.
Live for the present? What nonsense! You understand nothing about the tragedy of not being chosen! So, I'm going to give this a try. I'll steal everything from you and say the same thing back to you!
~ Hiryu to Sougo after becoming Another Zi-O II.

Hiryu Kakogawa, also known as Another Zi-O, is an Another Rider with the power to copy the powers of other Another Riders, and a major antagonist in Kamen Rider Zi-O.

He was portrayed by Yu Sakuma as an adult, and Taiga Komie as a child.



On April 24, 2009, Hiryu and Sougo were the only two survivors of a bus crash that killed everyone including their families. Though the bus crash was caused by the Time Jacker Swartz, Hiryu grew to believe that Sougo was the cause of the crash due to Tsukuyomi (who had traveled back from the future) calling out Sougo's name just before the crash.


Hiryu later obtains the Zi-O Anotherwatch from Swartz, allowing him to transform into Another Zi-O. Blaming Sougo for his parents' deaths, Hiryu sought to use his Another Rider powers to exact revenge. He began going after former Another Rider hosts to harvest their Anotherwatches for him to use, in the process coming into conflict with Zi-O, Geiz and Woz.

While going after Hayase, Hiryu fought against all three Riders in the Another Rider forms he had acquired and beat back Kamen Rider Woz Futurering Quiz. Hiryu then revealed his Another Zi-O form and fought Zi-O II in a fierce battle.

Hiryu later leaves to run after Hayase and steals the rest of Another Wizard's powers. Confronting Sougo, Hiryu tells him that the bus crash they were in took the lives of his parents and blames "the girl in the white dress" for it. Sougo and Hiryu then both transform and fight each other, only for their fight to be interrupted by Geiz. Geiz transforms into GeizRevive and easily defeats Another Zi-O, but Sworz appears and retrieves him before he can be finished off.

Hiryu later assaulted Geiz, declaring that he would be the one to kill Sougo Tokiwa, but was overwhelmed by the power of Geiz Revive. To obtain more power, Hiryu began forcibly implanting Anotherwatches in people to turn them into Another Riders. With his Another Rider army assembled, Hiryu went to confront Sougo Tokiwa, only for his Another Riders to be defeated by Zi-O and Geiz before he himself was defeated by Zi-O. Knocked out of his transformation, Hiryu was comforted by Sougo, who encouraged him to stop dwelling on the past and to look towards the future. Hiryu would call this encouragement a nonsense, and reset the timeline to ensure he rules as King of Time.

Altered 2019

Due to alterations to the timeline, Hiryu Kakogawa rose to become Oma Zi-O in 2019 instead of Sougo Tokiwa, becoming Another Zi-O II and commanding an army of Another Riders to enforce his rule. He was confronted by Sougo when he returned to 2019 and summoned Another AgitΩ, Another Den-O and Another Gaim to fight him. Though Sougo became Grand Zi-O defeated his Another Riders, Hiryu simply altered history so that they survived. Hiryu eventually overwhelmed Sougo and forced him to flee.

However, Sougo united with Geiz and Woz and launched a counterattack on Hiryu's Another Rider Army. Hiryu was ultimately defeated once more by Sougo as GrandZi-O, undoing the timeline where he reigned as Demon King and restoring everything to normal. With Hiryu's Zi-O Anotherwatch shattered, Swartz mocked him before leaving with Daiki Kaito and the Decade Anotherwatch.

Kamen Rider Zi-O: Final Stage

Hiryu Kakogawa returns as the main antagonist of this stageshow where he becomes the next Kamen Rider Barlckxs and becomes aligned with the Quartzer Riders Zonjis and Zamonas. He later becomes Another Oma Zi-O.



           Zi-O Logo.png Villains

Time Jackers
Swartz | Uhr | Ora | Tid | Finis

Another Riders
Another Build | Another Ex-Aid | Another Fourze | Another Faiz | Another Wizard | Another OOO | Another Double | Another Den-O | Another Kuuga | Another Gaim | Another Ghost | Another Shinobi | Another Quiz | Another Ryuga | Another Kikai | Another Zi-O | Another Blade | Another Agito | Another Ryuki | Another Hibiki | Another Kiva | Another Kabuto | Another Den-O II | Another Drive | Another Decade | Another Zero-One | Another 1 | Another Diend

Oma Zi-O's Army
Oma Zi-O | Woz | Kasshin | Dai Mazines

Future Riders
White Woz | Kamen Rider Ginga

Legendary Riders
Masato Kusaka | Kaito Kumon | Tsukasa Kadoya | Hajime Aikawa | Daiki Kaito | Shun Kageyama | Katsumi Daido

Another World Riders
Kamen Rider G4 | Kamen Rider Fuma | Kamen Rider Dark Ghost | Kamen Rider Rey | Kamen Rider Eternal | Kamen Rider Woz | Kamen Rider Yuuki

Kamen Rider Barlckxs | Kagen | Jogen | Woz | Kasshin | Dai Mazines

Tid's Army
Masquerade Dopants | Waste Yummies | Stardust Ninja Dustards | Elementary Inves | Ghouls | Lost Number Roidmudes | Gamma Commandos | Guardians | Hard Guardians

Swartz's Army
Monsters: Strong Smash Hazard | Mashin Chaser | Elementary Inves | Orion Zodiarts | Shika Inves | Utopia Dopant | N-Daguva-Zeba | Sagittarius Zodiarts | Gamedeus | Kamen Rider Evol
Footsoldiers: Guardians | Masquerade Dopants | Elementary Inves | Lost Number Roidmudes | Ghouls | Gamma Commandos | Bugster Virus

Waste Yummies | Gamma Commandos | Humanoise | Salis Worms | Gryllus Worm | Imposter Shun Kageyama | Mole Imagin | Narutaki

Rider Time Shinobi
Niji no Hebi
Yaminin | Stardust Ninja Dustards

Rider Time Ryuki
Tatsuya Kano | Takeshi Asakura | Jun Shibaura | Dark Shinji | Ishihashi | Tozuka | Kamen Rider Odin