This article is about a/an series entry (the 28th) in the Kamen Rider Series.
Red alert WARNING: This series contains scenes of blood, occasional graphic violence, gun violence, and murder. Viewer discretion is advised!
For the series' main character, Build, see Sento Kiryu.

Kamen Rider Build (仮面ライダービルド Kamen Raidā Birudo) is a Japanese tokusatsu drama in Toei Company's Kamen Rider Series. It is the nineteenth and penultimate series for a full Heisei period run and the twenty-eighth series overall. The series started on September 3, 2017, joining Uchu Sentai KyurangerIcon-crosswiki in the Super Hero Time line-up after the finale of Kamen Rider Ex-Aid. After Kyuranger concluded on February 4, 2018, the series was joined by Kaitou Sentai Lupinranger VS Keisatsu Sentai PatrangerIcon-crosswiki in the Super Hero Time line-up. After the finale of Kamen Rider Build, Kamen Rider Zi-O joined Lupinranger VS Patranger on the Super Hero Time block.

The tagline of the series is "Now, shall we begin the experiment?" (さぁ、実験を始めようか。 Sa, jikken o hajimeyou ka?). One of the underlying motifs of this season is science and scientific principles.

The average ratings of the series was 3.22%.[1]


"It has been 10 years since the Pandora Box was discovered on Mars and caused the Sky Wall tragedy. Our country was divided into Touto, Seito, and Hokuto, resulting in untold chaos."

"It has been 10 years since the Sky Wall tragedy. In the attempt to open the Pandora Box and release its massive amount of energy capable of destroying the world...a new battle has begun."

"The Pandora Box, which contains enough energy capable to destroy the Earth, has finally been opened. The alien lifeform Evolto controls that power...but the Kamen Riders stand against him!"

10 years ago, the Pandora Box was discovered on the planet Mars and brought forth a catastrophe that would forever change the country of Japan. In the years following the Sky Wall Disaster, the rising of the Sky Wall divided the country into three warring territories: Touto (Eastern Capital), Hokuto (Northern Capital) and Seito (Western Capital), and created a series of unidentified monsters known as Smash that relentlessly attack the public. To combat this chaos, the Touto government requested the help of Sento Kiryu, a genius and prodigious physicist to help decipher the mysteries left behind by both the Pandora Box and the Smash. Alongside prison escapee Ryuga Banjo, who was wrongfully framed for a murder he did not commit, the duo embark on a journey as Kamen Riders to uncover the mysteries surrounding the Pandora Box, the Smash, and their own pasts. Their journey would not come easy as they face adversaries from Hokuto and Seito, whom they must ultimately confide in if they are to have any hope in stopping their mutual enemy, Evolto from destroying the planet that they hold dear.



From Left to Right: Cross-Z Magma, Build Genius Form, Grease, and Rogue

Kamen Riders

TV Show

Kamen Rider Build
Takumi Katsuragi ►◄ Sento Kiryu
Kamen Rider Cross-Z Ryuga Banjo
Kamen Rider Grease Kazumi Sawatari
Kamen Rider Rogue
Gentoku Himuro
Kamen Rider Evol
Evolto/(Soichi IsurugiRyuga BanjoSento Kiryu)
Kamen Rider MadRogue
Nariaki Utsumi ►◄ Evolto/Nariaki Utsumi
Kamen Rider Build (Prototype)
Shinobu Katsuragi


Kamen Rider Blood
Kengo Ino
Kamen Rider Build Cross-ZBuild Form
Sento Kiryu & Ryuga Banjo
Kamen Rider Cross‑Z Evol
Ryuga Banjo & Evolto
Kamen Rider Build
Kamen Rider Killbus
Kamen Rider Metal Build Keiji Uraga



Guardian Touto Guardians


Hokuto Sanbagarasu

Castle Hard Smash Akaba
Castle Hazard Smash
Stag Hard Smash Aoba
Stag Hazard Smash
Owl Hard Smash Kiba
Owl Hazard Smash

Seito University Hospital

Kamen Riders

Kamen Rider OOO
Eiji Hino
Kamen Rider Fourze Gentaro Kisaragi
Kamen Rider Gaim Kouta Kazuraba
Kamen Rider Ghost Takeru Tenkuji
Kamen Rider Ex-Aid Emu Hojo
Kamen Rider Genm Kuroto Dan
Kamen Rider Brave Hiiro Kagami
Kamen Rider Snipe Taiga Hanaya
Kamen Rider Lazer Turbo Kiriya Kujo
Kamen Rider Zi-O
Sougo Tokiwa
Kamen Rider Geiz
Geiz Myokoin





Night Rogue Gentoku Himuro
Blood Stalk Evolto/Soichi Isurugi
Guardian Faust Guardians

Namba Heavy Industries Ltd.

Night Rogue Nariaki Utsumi
Hell Bro's
Washio Brothers
Remocon Bro's Fu Washio
Hell Bro's
Engine Bro's Rai Washio


Fang Smash Unidentified person
Needle Smash Unidentified man
Strong Smash Kyoichi Shimizu
Burn Smash Kasumi Ogura
Flying Smash Reika Kine
Shingo Kuwata
Mirage Smash Masahiro Nabeshima
Square Smash
Press Smash Tatsuya Kishida
Ice Smash Takehiko
Stretch Smash Sawa Takigawa
Strong Smash Hazard Kyoka Katsuragi
Unidentified Faust guard
Press Smash Hazard Eita Kawai
Stretch Smash Hazard Unidentified Faust guard


Guardian Hokuto Guardians
Press Smash Hazard Unidentified man
Flying Smash Hazard Unidentified man
Ice Smash Massugu Ubukata


Guardian Seito Guardians
Hard Guardian Hard Guardians
Clone Smash
Press Clone Smash Press Clone Smash
Stretch Clone Smash Stretch Clone Smash
Strong Clone Smash Strong Clone Smash
Flying Clone Smash Flying Clone Smash
Nebula Hell Bro's Unidentified man
Remocon Bro's Yoshikazu Takahashi
Engine Bro's Norio Matsui
Hell Bro's
Clone Hell Bro's


Lost Smash
Owl Lost Smash Yoshiko Tajimi Kiba (imitation)Owl Lost Smash/EvoltoKiba
Stag Lost Smash Kyoichi Shimizu Aoba (imitation)Stag Lost Smash/EvoltoAoba
Castle Lost Smash Akaba (imitation)Castle Lost Smash/EvoltoAkaba
CD Lost Smash Misora Isurugi/VernageCD Lost Smash/Evolto
Zebra Lost Smash Keiji UragaMitsuomi GobaraZebra Lost Smash/Evolto
Scissors Lost Smash Yui MabuchiRyoka SaigaScissor Lost Smash/Evolto
Hammer Lost Smash Hammer Lost Smash/Evolto
Spanner Lost Smash Spanner Lost Smash/Evolto
Foundation X
Kaiser Kaisei Mogami
Kaiser Reverse Kaisei Mogami (World of Ex-Aid)
Kaisei Mogami & Kaisei Mogami (World of Ex-Aid)
Guardian X Guardians
Uva Uva
Kazari Kazari
Gamel Gamel
Mezool Mezool
Scorpion Scorpion Zodiarts
Cancer Cancer Zodiarts
Leo Leo Zodiarts
Virgo Virgo Zodiarts
Down Fall
Phantom Crusher</div> Simon Marcus (Down Fall members)
Guardian Down Fall Guardians


Main article: Kamen Rider Build Episodes

Similar to the previous series, half of each episode's title is an English word, though spelled in katakana instead of English letters, and the other is written in kanji, similar to the transformation announcements of most Best Match Forms. Most of the episodes contain formulas from mathematics or physics to form each episode number in the title cards.

This series is divided into 3 arcs:[2][3]

  • Episode 1-16: Chapter One: This arc deals with Sento meeting Ryuga as he attempts to help him clear his name while collecting bottles from Smash created by Faust. The main antagonists of this arc are Blood Stalk and Night Rogue.
  • Episode 17-28: Chapter Two: This deals with Touto’s battle against the other two nations of Japan, Hokuto and Seito. It also features the debut of Grease, Rogue, the Hokuto Sanbagrasu, the Hell Bros, the Sclash Driver, and the Hazard Trigger.
  • Episode 29-49: Chapter Three: This deals with the rise of the Pandora Tower, the reveal of Evolto and his rider form, as well as the Riders uniting to save Earth from being destroyed by a black hole.
  1. That One with the Best Match (ベストマッチな奴ら Besuto Macchi na Yatsu ra)
  2. The Innocent Runaway (無実のランナウェイ Mujitsu no Rannawei)
  3. Borderline of Justice (正義のボーダーライン Seigi no Bōdārain)
  4. The Testimony Will Be Zero (証言はゼロになる Shōgen Wa Zero ni naru)
  5. Dangerous Identity (危ういアイデンティティー Ayaui Aidentitī)
  6. Moonsault of Anger (怒りのムーンサルト Ikari no Mūnsaruto)
  7. The Devil's Scientist (悪魔のサイエンティスト Akuma no Saientisuto)
  8. Memory Starts To Talk (メモリーが語りはじめる Memorī Ga Katari Hajimeru)
  9. The Trap of Project Build (プロジェクトビルドの罠 Purojekuto Birudo no Wana)
  10. Technology of Destruction (滅亡のテクノロジー Metsubō no Tekunorojī)
  11. Burning Dragon (燃えろドラゴン Moero Doragon)
  12. Theory of Conspiracy (陰謀のセオリー Inbō no Seorī)
  13. Who Takes Off The Veil? (ベールを脱ぐのは誰? Bēru o Nugu no wa Dare?)
  14. The False Kamen Rider (偽りの仮面ライダー Itsuwari no Kamen Raidā)
  15. Judging Sento Kiryu! (桐生戦兎をジャッジしろ! Kiryu Sento wo Jajji Shiro!)
  16. The Weaponry Hero (兵器のヒーロー Heiki no Hīro)
  17. Rider Wars Start (ライダーウォーズ開戦 Raidā Wōzu Kaisen)
  18. The Golden Soldier (黄金のソルジャー Ōgon no Sorujā)
  19. The Forbidden Item (禁断のアイテム Kindan no Aitemu)
  20. The Devil's Trigger (悪魔のトリガー Akuma no Torigā)
  21. The Unstoppable Hazard (ハザードは止まらない Hazādo wa Tomaranai)
  22. Victory of Tears (涙のビクトリー Namida no Bikutorī)
  23. The Phantom of the West (西のファントム Nishi no Fantomu)
  24. A Man Called Rogue (ローグと呼ばれた男 Rōgu to Yoba Reta Otoko)
  25. The Idol Awakens (アイドル覚醒 Aidoru Kakusei)
  26. The Treacherous Deathmatch (裏切りのデスマッチ Uragiri no Desumatchi)
  27. The Counterattack Hero (逆襲のヒーロー Gyakushū no Hīrō)
  28. The Genius Arrives With a Tank (天才がタンクでやってくる Tensai ga Tanku de Yattekuru)
  29. The Opening Bell Rings (開幕のベルが鳴る Kaimaku no Beruganaru)
  30. The Truth of the Pandora Box (パンドラボックスの真実 Pandora Bokkusu no Shinjitsu)
  31. Surging Magma! (ほとばしれマグマ! Hotobashire Maguma!)
  32. Programmed Tragedy (プログラムされた悲劇 Puroguramu sa Reta Higeki)
  33. The Final Weapon: Evol (最終兵器エボル Saishū Heiki Eboru)
  34. The Severing Best Match (離れ離れのベストマッチ Hanarebanare no Besuto Matchi)
  35. Tower of Destruction (破滅のタワー Hametsu no Tawā)
  36. Evolto Hunts the Stars (エボルトは星を狩る Eboruto wa Hoshi O Karu)
  37. The Ultimate Phase (究極のフェーズ Kyūkyoku no Fēzu)
  38. Mad World (マッドな世界 Maddo na Sekai)
  39. The Unstoppable Genius (ジーニアスは止まらない Jīniasu wa Tomaranai)
  40. The Final Revolution (終末のレボリューション Shūmatsu no Reboryūshon)
  41. The Truth of the Best Match (ベストマッチの真実 Besuto Matchi no Shinjitsu)
  42. Legacy of Doubt (疑惑のレガシー Giwaku no Regashī)
  43. The Other Build (もう一人のビルド Mōhitori no Birudo)
  44. The End of Evolto (エボルトの最期 Eboruto no Saigo)
  45. The Scientist of Hope (希望のサイエンティスト Kibō no Saientisuto)
  46. An Oath to Be The One (誓いのビー・ザ・ワン Chikai no Bī za Wan)
  47. Zero Degree Flames (ゼロ度の炎 Zero-do no Honō)
  48. To The World of Love & Peace (ラブ&ピースの世界へ Rabu & Pīsu no Sekai e)
  49. The Tomorrow Build Will Create (ビルドが創る明日 Birudo ga Tsukuru Ashita)


  1. Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders (仮面ライダー平成ジェネレーションズFINALビルド&エグゼイドwithレジェンドライダー Kamen Raidā Heisei Jenerēshonzu Fainaru: Birudo ando Eguzeido wizu Rejendo Raidā)
  2. Kamen Rider Build: Be The One (劇場版 仮面ライダービルド: ビー・ザ・ワン Gekijō-ban Kamen Raidā Birudo: Bī Za Wan)
  3. Kamen Rider Heisei Generations FOREVER (仮面ライダー平成ジェネレーションズFOREVER)
  4. Kamen Rider Build NEW WORLD (仮面ライダービルド NEW WORLD Kamen Raidā Birudo Nyū Warudo)
    1. Kamen Rider Cross-Z (仮面ライークローズ Kamen Raidā Kurōzu)
    2. Kamen Rider Grease (仮面ライダーグリス Kamen Raidā Gurisu)


  1. Kamen Rider Build: Transformation Lessons ~The Laws Of Transformation Are Set!~ (仮面ライダービルド 変身講座~変身の法則は決まった!~ Kamen Raidā Birudo Henshin Kōza Henshin No Hōsoku Wa Kimatta!)
  2. Kamen Rider Build: Birth! KumaTelevi!! VS Kamen Rider Grease! (仮面ライダービルド 誕生!クマテレビ!! VS仮面ライダーグリス Kamen Raidā Birudo: Tanjō! Kuma Terebi! ! VS Kamen Raidā Gurisu)
  3. Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~ (仮面ライダービルド ハザードレベルを上げる ~7つのベストマッチ~ Kamen Raidā Birudo Hazādoreberu o Ageru Nanatsu no Besuto Matchi)
  4. ROGUE (ROGUE Rōgu)
  5. Ametalk! Kamen Rider Entertainer, Episode 3 (アメトーーク! 仮面ライダー芸人 第3回 Ametō̄ku! Kamen Raidā Geinin)
  6. Kamen Rider Prime Rogue (仮面ライダープライムローグ Kamen Raidā Puraimu Rogu)
  7. I Heard the Idol Otaku is Dating His Fav (ドルヲタ、推しと付き合うってよ Doruwota, Oshi To Tsukiau Tte Yo)


  1. Kamen Rider Build: Special Event (仮面ライダービルド スペシャルイベント Kamen Raidā Birudo Supesharu Ibento)
  2. Kamen Rider Build: Final Stage (仮面ライダービルド ファイナルステージ Kamen Raidā Birudo Fainaru Sutēji)

Other media


  1. Kamen Rider Build: Science Creation Chapter (幪面超人BUILD【科學創界篇】 Mung Min Chiu Yan Build Fo Hok Cong Gaai Pin)


  1. Kamen Rider Build (小説 仮面ライダービルド Shōsetsu Kamen Raidā Birudo)


The following video games feature characters from Build.


Suit actors

Theme songs

Opening theme
  • "Be The One"
    • Lyrics, Composition & Arrangement: PANDORA
    • Artist: PANDORA feat. Beverly
    • Episodes: 2-11, 13-15, 18-37, 39-48
  • Episodes 1, 12, 16, 17, 38, and 49 do not feature the show's opening sequence. This song is used as the ending theme in episodes 1, 12, 38, and 49 and as an insert song in episodes 16, 17, and 39.
Insert themes
  • "Ready Go!!"
    • Lyrics: Mio Aoyama
    • Composition & Arrangement: ats-, Takehito Shimizu, Toru Watanabe
    • Artist: ats-, Takehito Shimizu & Toru Watanabe Feat. AXL21
    • Episodes: 27, 28
  • "Burning My Soul"
    • Lyrics: BOUNCEBACK
    • Composition & Arrangement: fo(u)r Scream
    • Artist: J-CROWN & TaKu from 1 FINGER
    • Episodes: 31, 32
  • "Evolution"
    • Lyrics: Kyasu Morizuki, Mio Aoyama
    • Composition & Arrangement: ats-, Takehito Shimizu, Toru Watanabe
    • Artist: ats-, Takehito Shimizu & Toru Watanabe Feat. AXL21
    • Episodes: 33
  • "Build up"
    • Lyrics: Chisato Akita
    • Composition & Arrangement: Kikuo Sato
    • Artist: Kamen Rider Girls
    • Episodes: 40, 41
  • "Law of the Victory"
    • Lyrics: Ricky
    • Composition: Koichi Terasawa
    • Arrangement: Kikuo Sato
    • Artist: Rider Chips
    • Episodes: 44, 45


  • This series ran through 2018, the 80th anniversary of Shotaro Ishinomori's birth.
  • This series will be the final Rider series to have a full televised run in the Heisei Era; the series after Build will be in a similar position to Kamen Rider Black RX in that it will run during the transition of reigning emperors. Emperor Akihito will abdicate the throne in April 30, 2019[4] to his son Prince Naruhito, thus beginning the Reiwa era of Japan.
  • With this series, Kamen Rider's timeslot changes from 8am to 9am starting in October.
  • This series opening credits reuse the same font style that was used in Kamen Rider Ex-Aid.
  • This Kamen Rider series shares some similar elements with its first Super Hero Time partner, Uchu Sentai Kyuranger.
    • Both take place in separate universes from their respective franchises.
    • The heroes from both series visited their respective franchises' main universes and they met and fought alongside some of their predecessors who live there.
  • This is the first series since:
    • Kamen Rider Ghost to not have a Super Hero Taisen film air during its run.
    • Kamen Rider Gaim to not feature characters from the succeeding series to appear in the final episode.
    • Kamen Rider Wizard to premiere in September and to not to have a Spring Crossover with a co-airing Super Sentai series.
    • Kamen Rider Fourze to have a female vocalist sing its opening theme.
    • Kamen Rider W to not appear in the Spring film during its run and to feature a main item from the succeeding season.
    • Kamen Rider Decade to use only "Form" in naming the Rider's forms instead of using a unique term like Combo, States, etc.
    • Kamen Rider Den-O to neither have a female Rider in the TV series, Movies or Specials.
    • The entirety of the franchise to have its opening theme song performed by a non-native Japanese vocalist.
  • In keeping with the science motif, a few of the equations, graphs, formula and matrix seen in the background or Rider's finisher in the show are based on math, scientific theories or scientific principles. These objects are provided by professors from Keio University, Kyushu University, Kyoto University and JSPS after a discussion of how to show characters' emotion symbolically.[5]


External Links

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Showa Era (1971-1994)
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Shin (movie)ZO (movie)J (movie)

Heisei Era (2000-2009)
Heisei Era Phase 2 (2009-2019)
Reiwa Era (2019-)
Remakes and Other Series
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English Adaptations
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