Icon-zi-o.png This article is about a/an rider in Kamen Rider Zi-O.

"You did well all this time... to become my replacement."
―SOUGO to his other self[src]

"We are Quartzer. The Wardens of History."
―SOUGO proclaim the arrival of Quartzer in the front of his other self, Geiz, and Tsukuyomi[src]

"I guarantee that the Heisei Era I created will be perfect and beautiful."
―SOUGO's goal to rewrite Heisei Era[src]

"That's enough for your role to support that fake king!"
―SOUGO to Black Woz after he betrays Quartzer[src]

SOUGO Tokiwa (常磐SOUGO Tokiwa Sōgo) is the main antagonist of Kamen Rider Zi-O: Over Quartzer. As the Leader of Quartzer (クォーツァーのリーダー Kwōtsā no Ridā), he wishes to bring upon rebirth to the Heisei Era as Kamen Rider Barlckxs (仮面ライダーバールクス Kamen Raidā Bārukusu).


Early History

SOUGO secretly aiding his decoy in order to draw attention away from Swartz.

While details involving his history is unknown, this is the true Sougo Tokiwa who reigns as the king of time using the modern Sougo as his decoy to draw the attention of his enemies. His goal is to erase the current Heisei Era and replace it with a new one.

Sometime in his timeline, Sougo founded Quartzer to ensure his rise of power. He gave Black Woz the Ohma Advent Calendar, and commanded him to guide his substitute to become Ohma Zi-O.

At some point, he rescued his counterpart's younger self from an unseeable distance, disintegrating one of the Dai Mazines. By doing so, he intentionally made sure that Sougo would be approached by the Time Jacker Swartz, thus being the cause of Sougo willing to become Ohma Zi-O.

Battle in World of Zi-O

Barlckxs fight against Zi-O Ohma Form

After Sougo unlocked GrandZi-O's power, he sent Kagen and Jogen to the Sengoku Era to eliminate Krim Steinbelt's ancestor and thus prevent the creation of the Drive Driver, which would in turn negate the GrandZi-O Ridewatch.

After Sougo receives the Drive Ridewatch from Krim Steinbelt and finishes collecting all the Ridewatches, Woz stole all the Ridewatches to deliver them to the Sougo's original other, who appears to his alternate self seated on the throne with the other Quartzers standing on either side of him. Introducing the Quartzer as the "Wardens of History", then he transforms into Kamen Rider Barlckxs and swiftly defeats Zi-O before having him imprisoned. With his decoy out of the way, the original Sougo begins his ultimate plan: to use a portal to smash the World of Zi-O into the world from the first year of Heisei and erase the history of the Kamen Riders, thus creating a new world for him to rule over as king of time.

However, Ohma Zi-O then interferes to prevent the Quartzer Leader from altering the future and gives present Sougo the Ohma Zi-O Ridewatch, which Sougo uses to transform into Kamen Rider Zi-O OhmaForm and summons the past 19 Heisei Kamen Riders to do battle with SOUGO and his army of Dai Mazines and Kasshines. Seeing this, Black Woz defects from the Quartzer and returns to Sougo's side, tearing pages out from the Ohma Advent Calendar and causing the portal to stop functioning. As the Riders destroy the Dai Mazines, Barlckxs stabs Black Woz with his sword as punishment for his betrayal before facing the Heisei Riders. Barlckxs uses Black RX's BioRider and J's Ridewatch to grow giant and fights off all of the Riders with his tremendous power. However, refusing to give up, Zi-O and the other Kamen Riders all perform their Rider Kicks on Barlckxs and use their combined power to destroy the Quartzer Leader.

Video Game appearances

Kamen Rider Buttobasoul

Kamen Rider Barlckxs medal

Kamen Rider Barlckxs is a playable character in Kamen Rider Buttobasoul.


SOUGO seems to be a rather cunning and patient person, as he was able to set in motion Ohma's rise back when his counterpart was just a kid, all in order to create a decoy that will draw the attention of his enemies. These actions reveal that he didn't care about involving innocent people if it meant benefiting him.

Like with most villains, his greatness weakness is his arrogance. He was unable to see that Black Woz had betrayed him and very much underestimated his young counterpart in battle.

Kamen Rider Barlckxs

Kamen Rider Barlckxs

Kamen Rider Barlckxs

"Rider Time! Kamen Rider Barlckxs!"
―Transformation announcement[src]

Rider Statistics:[1]

  • Rider Height: 200 cm
  • Rider Weight: 112.5 kg

Ability Parameters:[1]

  • Punching Power: 60 t
  • Kicking Power: 126 t
  • Maximum Jump Height: 81 m
  • Maximum Running Speed: 100 m per 0.7 seconds


  • Legend Riders' Powers: Like Ohma Zi-O, Barlckxs can use the powers of Legend Riders by activating their respective Ridewatches.
    • Black RX (Biorider): Turns into liquid/gel-like state.
    • J: Grows large in size similar to J's Jumbo Formation.
  • Rider Power Nullification: Barlckxs is capable of nullifying the power of any Rider, as he was able to nullify the Heisei Riders summoned by GrandZi-O.

Barlckxs's finisher is the Barlckxs Time Break (バールクスタイムブレーク Bārukusu Taimu Burēku): Barlckxs performs a version of Kamen Rider Black RX's RX Kick, but with one leg tucked rather than both.

Appearances: Kamen Rider Zi-O: Over Quartzer





to be added

Behind the Scenes


SOUGO is portrayed by singer ISSA of DA PUMP fame. As Kamen Rider Barlckx, his suit actor is Yuji Nakata (中田 裕士 Nakata Yūji). Jiro Okamoto, who was the suit actor for Black RX (whom Barlckxs was based on), was originally going to be suit actor for Barlckxs, but had to opt out due to a scheduling conflict.[2]


  • Barlckxs' name (in this case, an anagram of) and design is based on Kamen Rider Black RX, the first Kamen Rider television series to be broadcast in Heisei Era, but which is generally counted as a Showa series.
    • Additionally, the Black RX, Roborider, and Biorider Ridewatches are inserted on his Ridewatch Holder.
    • Barlckxs also wields a sword resembling the Revolcane, which is summoned through the Ziku-Driver in the same style Revolcane is summoned from Sunriser.
    • His transformation pose is close to Black RX’s early initiation. But instead of moving his right hand lower like Black RX, he moves his right hand from the sky to his face like how Mutsuki Kamijou transforms, as the effect of Barlckxs' transformation background sequence is based on Black RX's Sunriser and Transfomation Sequence Effect.
  • The gold colors and red visor bears a similarity to Ohma Zi-O, a possible hint to his true identity.
  • Quartzer Sougo is the only Movie Rider (except Kagen and Jogen) in Over Quartzer who doesn't wear his own civilian outfit based on Kohtaro Minami's civilian attire.

"Heisei" being held up.

  • When Barlckxs got defeated by his modern counterpart in his OhmaForm and the Heisei Riders, the shield he made to defend himself against the attack was revealed to have the characters "平成" (Heisei) on it made from all the Heisei Riders's Rider Kicks. This is an obvious reference to the well-known reveal announcement of the Heisei Era name held by former Japan chief cabinet secretary Keizō Obuchi in 1989.

Barlckxs Mantle-less.jpg

  • A concept art of Barlckxs shown that he is able to take off his accessories similar to Kamen Rider Zonjis.



  1. 1.0 1.1 [1]
  2. Zi-O Reader 2019 , pp. 78-80, "ZI-O SUIT-ACTOR CROSS TALK Seiji Takaiwa x Yuya Nawata x Eitoku"
Sougo Tokiwa (Over Quartzer) - Geiz Myokoin - Woz (black, white, red) - Tsukuyomi
Other Sougo Tokiwa variations
Ohma Zi-O - Mirror World - Leader of Quartzer - B - C - D - E - F - Robot Sougo - True Sougo
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2022 (Rentaro Kagura - Isamichi Konjo) - 2040 (Mondo Douan) - 2121 (Rento Makina) - Kamen Rider Ginga
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Ishihashi - Tozuka - Kimura - Ishida - Abyss - Odin
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G4 - Fuma - Dark Ghost - Rey - Katsumi Daido - White Woz - Yuuki
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Movie-exclusive Riders
SOUGO Tokiwa - Kagen - Jogen - Soreo Hiden
Stageshow-exclusive Riders
Hiryu Kakogawa - Red Woz
Transformation Devices
Ziku-Driver - Ohma Zi-O Driver - Beyondriver - Miraidriver (Shinobi, Hattari, Quiz, Kikai, Ginga) - NeoDecadriver - NeoDiendriver - K-Touch 21
Ridewatches - Miridewatches- Ridewatch Holder - Ridewatch Daizer - Faizphone X - Taka Watchroid - Kodama Suika Arms
Zikan Girade - Zikan Zax - Ride HeiSaber - Zikan Despear - Saikyo Girade - Zikan Jaclaw - Barlckxs' Sword
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Futaros - Ataru Hisanaga - Shingo Hisanaga - Iroha Kagura - Master Gamano - Sara - Ms. Sailor - Oda Nobunaga - Clara Steinbelt - Gyuzo - Pietro - Resistance Captain
Kuuga: Yusuke Godai
Agito: Shoichi Tsugami - Takahiro Omuro
Ryuki: Shinji Kido - Dark Shinji - Ren Akiyama - Takeshi Asakura - Miyuki Tezuka - Jun Shibaura - Goro Yura
555: Takumi Inui - Masato Kusaka
Blade: Kazuma Kenzaki - Hajime Aikawa
Hibiki: Hitoshi Hidaka - Tomizo Todayama - Kyosuke Kiriya
Kabuto: Soji Tendo - Arata Kagami - So Yaguruma
THE FIRST/THE NEXT: Takeshi Hongo - Katsuhiko Yano - Shiro Kazami
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G: Goro
W: Philip & Shotaro Hidari - Ryu Terui
OOO: Eiji Hino - Michal Minato - Akira Date - Shintaro Goto
Fourze: Gentaro Kisaragi
Wizard: Haruto Soma - Kosuke Nitoh
Gaim: Kouta Kazuraba - Kaito Kumon - Takatora Kureshima
Drive: Shinnosuke Tomari - Go Shijima - Chase - Brain
Ghost: Takeru Tenkuji - Makoto Fukami
Kuuga (manga): Yusuke Godai
Amazons: Haruka Mizusawa - Jin Takayama
Ex-Aid: Emu Hojo - Hiiro Kagami - Kiriya Kujo - Kuroto Dan - Masamune Dan
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Build: Sento Kiryu - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro - Evolto
Zero-One: Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi
Chuta Ohsugi - Daita Kondou - Chikao Nezu - Hina Izumi - Shibuya Hachioji - Narita Kisarazu - Misora Isurugi - Master of Fumen - Owner - Momotaros - Urataros - Kintaros - Ryutaros - Eri Ogawa - Daisuke Okubo - Amane Kurihara - Mana Kazaya - Riki - Ramon - Deneb - Krim Steinbelt - Takeshi Kinashi - Izu - Shesta - Jun Fukuzoe - Sanzo Yamashita - Narutaki
Swartz - Heure - Ora
Movie Exclusive
Tid - Finis
SOUGO Tokiwa - Kagen - Jogen - Woz
Another Build - Another Ex-Aid - Another Fourze - Another Faiz - Another Wizard - Another OOO - Another Gaim - Another Ghost - Another Double - Another Den-O - Another Kuuga - Another Shinobi - Another Quiz - Another Ryuga - Another Kikai - Another Zi-O (II) - Another Ryuki - Another Blade - Another Agito (troops) - Another Hibiki - Another Kiva - Another Kabuto - Another Drive - Another Decade
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Another Zero-One - Another 1 - Another Diend
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Another Rider - No Rider - Another Ohma Zi-O
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Niji no Hebi: Yaminin - Dustards
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