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Yontoryu Infobox
Japanese Name: 四刀流
Romanized Name: Yontōryū
Official English Name: Four Swords Style
Literal Meaning: Four Sword Style
Debut: Chapter 401; Episode 286
User(s): Kaku[1][2]
Fighting Style Focus: Swords, Rankyaku, Ushi Ushi no Mi, Model: Giraffe abilities

Yontoryu is a sword technique developed and used by Kaku.


As the technique's name suggest, Yontoryu is swordsmanship that uses four swords. Kaku achieves this by combining his two shirasaya katana with his Rokushiki technique "Rankyaku", which lets him create slicing air blades via kicking, thus appearing to have four blades in total.[1] Kaku's large variation in the Rankyaku technique makes the Yontoryu a truly powerful and versatile combat style. The most prominent example of combining his two swords with his Rankyaku is the "Rankyaku: Ran", that uses the two blades to stay on the ceiling while raining a flurry of air blades down at his opponent.[3] However, Kaku can only maintain Yontoryu if he is in control of the fight; if forced on the defensive, as seen at the beginning of his fight with Zoro, he can only defend with two swords. However, when transformed to his half-giraffe form, his reach is long enough to make it largely impossible to force him on the defensive.[2]

Upon consuming the Ushi Ushi no Mi, Model: Giraffe, Kaku further attained versatility with his Yontoryu style, by combining the increase in size and strength that he gains from transforming into a giraffe-human hybrid. His long neck also serves as a whip of sort, which he functions somewhat like a blade.[2]


  • In the episode when Vivi leaves the Straw Hats, the crewmembers were very sad; when Zoro suggests they should have kept Vivi by force, each Straw Hat jeers at him. Luffy's jeer was 'Santoryu', but then changed it to 'Yontoryu' when Usopp mentioned that 'Santoryu' wasn't an insult.[4]


  1. 1.0 1.1 One Piece Manga and Anime — Vol. 42 Chapter 401 (p. 5-6) and Episode 286, Kaku proclaims himself as a user of the Yontoryu, shown by using his Rankyaku as the two extra blades.
  2. 2.0 2.1 2.2 One Piece Manga and Anime — Vol. 43 Chapter 417 (p. 9-10) and Episode 300, Kaku repeats his status as a user of Yontoryu, having a higher degree of freedom in his giraffe form.
  3. One Piece Manga and Anime — Vol. 42 Chapter 401 (p. 10-11) and Episode 286, Kaku using "Rankyaku: Ran" at Zoro.
  4. One Piece Manga and Anime — Vol. 24 Chapter 217 (p. 16) and Episode 130, Luffy fails to insult Zoro by nicknaming him "Santoryu", but when Ussop corrects him that it isn't an insult he adds one by nicknaming him "Yontoryu".

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Fighting Styles
Hand-to-hand Styles: Black Leg Style  •  Fishman Karate  •  Okama Kenpo  •  Mutoryu  •  Rokushiki  •  Diable Jambe  •  Life Return  •  Newkama Kenpo  •  Fishman Jujutsu  •  Merman Combat  •  Jao Kun Do  •  Hasshoken  •  Ryusoken  •  Tontatta Combat  •  Jio-Ken  •  Electro  •  Combination Play 
Others: Haki (Kenbunshoku Haki  •  Busoshoku Haki  •  Haoshoku Haki)
Related: Martial Artist
Weapon-Based Styles
Swords Styles: Santoryu  •  Ittoryu  •  Nitoryu  •  Rokutoryu  •  Yontoryu  •  Kyutoryu  •  Fencing Style  •  Hattoryu  •  Kitsunebi-ryu
Other Weapons-Based Styles: Usopp Tactics  •  Art of Weather  •  Rope Action  •  Ramen Kenpo  •  Cyborg Tactics/Armored Me  •  Soul Solid  •  Merman Gujutsu  •  Kanpo Kenpo 
Related: Swordsmen
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World Government
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Associated Groups: Marines  •  Shichibukai  •  Cipher Pol (0  •  5  •  6  •  7  •  9)  •  Police  •  Jailer Beasts  •  Nobles
Significant Locations: Gates of Justice  •  Mariejois  •  Enies Lobby   •  Impel Down  •  Marine Headquarters  •  Marineford
Government Employees
Cipher Pol Agents: Spandam  •  Funkfreed  •  Rob Lucci  •  Hattori  •  Kaku *  •  Jabra *  •  Blueno *  •  Kumadori *  •  Fukuro *  •  Kalifa *  •  Nero   •  Spandine   •  Laskey   •  Wanze *  •  Jerry *
Enies Lobby Staff: Baskerville  •  Watchdog Unit of the Law  •  Just Eleven Jurymen  •  Oimo   •  Kashi   •  Gatherine  •  Jorge
Impel Down Staff: Hannyabal  •  Magellan  •  Domino  •  Sadi-chan  •  Saldeath  •  Shiliew   •  Bazooka Unit  •  Minotaurus  •  Minorhinoceros  •  Minokoala  •  Minozebra  •  Minochihuahua  •  Blue Gorillas  •  Puzzle Scorpions  •  Manticores  •  Basilisk  •  Sphinx  •  Wolf Unit
Other Agents: Corgi
Devil Fruit Based: Doa Doa no Mi  •  Neko Neko no Mi, Model: Leopard  •  Zou Zou no Mi  •  Inu Inu no Mi, Model: Wolf  •  Ushi Ushi no Mi, Model: Giraffe  •  Awa Awa no Mi  •  Doku Doku no Mi
Fighting Style Based: Rokushiki  •  Ramen Kenpo  •  Life Return  •  Yontoryu  •  Doriki  •  Haki
Weapon Based: Shikomizue  •  Kessui  •  Nodachi
Related Articles
Story Arcs: Loguetown Arc  •  Drum Island Arc  •  Alabasta Arc  •  Jaya Arc  •  Long Ring Long Land Arc  •  Water 7 Arc  •  Enies Lobby Arc  •  Post-Enies Lobby Arc  •  Thriller Bark Arc  •  Sabaody Archipelago Arc  •  Impel Down Arc  •  Post-War Arc  •  Return to Sabaody Arc  •  Fishman Island Arc  •  Punk Hazard Arc  •  Dressrosa Arc
Mini-Series: CP9's Independent Report
Others: Bounties  •  Banaro Incident  •  Battle of Marineford  •  Justice
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Enies Lobby
CP9: Spandam (and Funkfreed)  •  Rob Lucci (and Hattori  •  Kaku   •  Jabra   •  Blueno   •  Kumadori   •  Fukuro   •  Kalifa   •  Nero 
Enies Lobby Staff: Baskerville  •  Watchdog Unit of the Law  •  Just Eleven Jurymen  •  Oimo   •  Kashi   •  Gatherine *  •  Jorge *
Devil Fruit Based: Zou Zou no Mi  •  Neko Neko no Mi, Model: Leopard  •  Ushi Ushi no Mi, Model: Giraffe  •  Inu Inu no Mi, Model: Wolf  •  Doa Doa no Mi  •  Awa Awa no Mi
Fighting Styles Based: Rokushiki  •  Yontoryu  •  Life Return  •  Doriki
Related Articles
Story Arcs: Water 7 Arc  •  Enies Lobby Arc
Mini-Series: CP9's Independent Report
Locations: Calm Belt  •  Water 7  •  Gates of Justice
Other: Sea Train  •  Kairoseki  •  Cipher Pol  •  World Government

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