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Koshiro is Zoro's teacher and Kuina's father.[2] He is the Dojo Master of Isshin Dojo in Shimotsuki Village.[1]

AppearanceEdit

Koshiro 22 Years Ago

Koshiro twenty two years ago.

Koshiro is a tall man with black hair tied back in a long ponytail. He has a wrinkled face, and wears glasses with circular frames. He always wears a gray yukata and sometimes he has a beige haori over it with two crossed swords on the left breast.

When Kuina was born, Koshiro looked younger, and less wrinkled.

PersonalityEdit

He was a believer that females are naturally weaker than their male counterparts and are therefore unsuitable to be warriors.[3] Koshiro seems to appreciate talent as shown when he noted that as long as Zoro valued his swordsmanship he did not care if he had became a pirate.[4] Although he is always seen smiling, he gives the impression of being a mostly emotionless person. Koshiro's reaction to his daughter's death was just a comment that "humans are fragile" when telling Zoro that she died.[5]

Abilities and PowersEdit

He is skilled enough with a sword that he can teach others to use it. He showed Zoro how to "cut without cutting" by cutting a piece of paper without slicing it in half.[6]

HistoryEdit

PastEdit

One day, a young Zoro came to his dojo for a challenge. Koshiro pitted Zoro against his daughter Kuina and stated that if Zoro loses, he would become a student of the dojo. Zoro accepted the challenge and lost and became Koshiro's student as agreed.[3]

It is revealed that, at least once, Isshin Dojo helped the Revolutionaries by providing them food and supplies. A man with a large face (probably Emporio Ivankov) was seen and Dragon said that the army received food from the dojo.[7]

One night, Koshiro discussed about Zoro's progress with a fellow teacher and was confident that Zoro would one day surpass Kuina. Kuina, having overheard this conversation, became outraged saying that she will be the world's greatest swordsman. Koshiro stated that as a woman, Kuina cannot be the world's greatest swordsman causing her to be distraught.[3]

On the day after Zoro and Kuina made their vow, Kuina had fallen down the stairs while trying to get a sharpening block and died. On Zoro's request, Koshiro handed him the family's Meito Wado Ichimonji.[8]

Several years later, Zoro leaves the village to become the world's best swordsman.

Water 7 SagaEdit

Post-Enies Lobby ArcEdit

After the Enies Lobby incident, Koshiro was seen again in his dojo when his students were asking him about Zoro. He wished Zoro to go on ahead and fulfill his dream. Koshiro also stated that as long as Zoro treasures his sword, it will not matter what person he becomes.[4]

From the Decks of the WorldEdit

After the news of the Straw Hat Pirates spread across the world, Koshiro was seen next to Kuina's grave.[9]

From the Decks of the World: The 500,000,000 Man ArcEdit

After the Straw Hats' victory at Dressrosa, Koshiro was dismayed that his young students began to imitate Zoro by practicing Santoryu and taping their left eyes shut.[10]

Anime and Manga DifferencesEdit

Koshiro Graying Hair

Koshiro with graying hair in the anime.

At the end of the anime's flashback of Zoro's past, Koshiro was shown with bits of gray hair when Zoro left the village. Yet, his hair was fully black when Zoro received his second bounty. This is most likely due to him not yet having been seen outside of Zoro's flashback in the manga at the time.

In the manga, his actions are limited to Zoro's flashback while in the anime his role is expanded. Kuina's increased fighting potential is noted by him because of her rivalry with Zoro, while in the manga he makes no statement. His traditional values are also touched upon as he contemplated making Zoro his heir rather than his own daughter Kuina simply because of her gender.[3]

TriviaEdit

KoshiroCameo

Koshiro's cameo in the crowd.

ReferencesEdit

  1. 1.0 1.1 One Piece Yellow: Grand Elements.
  2. One Piece Manga — Vol. 1 Chapter 5 (p. 11).
  3. 3.0 3.1 3.2 3.3 One Piece AnimeEpisode 19, Zoro's flashback in the anime.
  4. 4.0 4.1 One Piece Manga and Anime — Vol. 45 Chapter 440 and Episode 324, Koshiro talks to his new students.
  5. One Piece Manga — Vol. 1 Chapter 5 (p. 16).
  6. One Piece Manga and Anime — Vol. 21 Chapter 194 and Episode 119.
  7. One Piece Manga — Vol. 60 Chapter 589 (p. 7).
  8. One Piece Manga and Anime — Vol. 1 Chapter 5 and Episode 19.
  9. One Piece Manga — Vol. 63 Chapter 617, cover story: From the Decks of the World Vol. 5.
  10. One Piece Manga — Vol. 81 Chapter 807, cover story: From the Decks of the World: The 500,000,000 Man Arc Vol. 3, Koshiro shows dismay that his young students have begun imitating Zoro by practicing Santoryu.
  11. One Piece AnimeEpisode 303, Koshiro is seen in the crowd watching the cherry blossoms.

Site NavigationEdit

[v · e · ?]
Shimotsuki Village
Inhabitants: Koshiro  •  Kuina   •  Roronoa Zoro   •  Saga 
Locations: Isshin Dojo
Related Articles
Story Arcs: Romance Dawn Arc  •  Post-Enies Lobby Arc  •  Chapter 0
Cover Stories: From the Decks of the World  •  From the Decks of the World: The 500,000,000 Man Arc
Specials: Episode of East Blue
[v · e · ?]
East Blue Inhabitants
East Blue Civilians
Dawn Island: Foosha Village (Monkey D. Luffy   •  Makino  •  Woop Slap  •  Gyoru  •  Chiken  •  Minatomo  •  Monstar)  •  Goa Kingdom (Sabo   •  Outlook III  •  Stelly  •  Ahho Desunen IX  •  Ahho Zurako  •  Sally Nantuckanet)  •  Mt. Colubo (Curly Dadan  •  Dogra  •  Magra  •  Portgas D. Ace )  •  Higuma   •  Monkey D. Garp   •  Monkey D. Dragon   •  Red Hair Pirates  (Shanks  •  Benn Beckman  •  Lucky Roo  •  Yasopp)  •  Bluejam Pirates (Bluejam  •  Porchemy )  •  Lord of the Coast  •  Naguri   •  Pochi 
Shimotsuki Village: Roronoa Zoro   •  Kuina   •  Koshiro  •  Saga  
Shells Town: Morgan   •  Helmeppo   •  Ukkari  •  Rokkaku  •  Ripper  •  Soro  •  Rika  •  Ririka  •  Coby 
Orange Town: Boodle  •  Chouchou  •  Poro  •  Hocker   •  Buggy Pirates  (Buggy  •  Mohji  •  Richie  •  Cabaji)
Island of Rare Animals: Gaimon  •  Sarfunkel  •  Cocox  •  Usagihebi  •  Lionbuta
Syrup Village: Usopp   •  Kaya  •  Klahadore   •  Usopp Pirates  (Ninjin  •  Piiman  •  Tamanegi)  •  Merry  •  Mornin  •  Yassop   •  Banchina   •  Mansion's Guards  •  Luigia  
Baratie: Staff (Zeff  •  Sanji  •  Patty  •  Carne)  •  Visitors (Fullbody  •  Moodie  •  Motzel  •  Roxanne)
Cocoyasi Village: Nami  •  Nojiko  •  Genzo  •  Nako  •  Bell-mère   •  Johnny  •  Yosaku  •  Mummy Mee  •  Daddy Dee  •  Chabo  •  Teru  •  Arlong Pirates  (Arlong  •  Chew  •  Kuroobi  •  Hatchan  •  Pisaro  •  Kaneshiro  •  Take  •  Shioyaki  •  Mohmoo)
Loguetown: Gol D. Roger   •  Smoker   •  Tashigi   •  Yu  •  Sapi  •  Hanger  •  Ippon-Matsu  •  Anjo  •  Mashikaku   •  Raoul   •  Daddy Masterson   •  Carol   •  Riley Brothers  (Pete)  •  Carmen   •  Leo   •  Jose   •  Shutai   •  Eccoli 
Other Pirates: Alvida Pirates (Alvida  •  Heppoko  •  Peppoko  •  Poppoko)  •  Black Cat Pirates (Sham  •  Buchi  •  Nugire Yainu )  •  Krieg Pirates (Krieg  •  Gin  •  Pearl  •  Hustle  •  Ideaman  •  Kagikko)  •  Tacobo  •  Yes Pirates (Billy  •  Koze and Packy)  •  Tulip Pirates (Yurikah)  •  Spade Pirates (Masked Deuce)  •  Barto Club  (Bartolomeo  •  Gambia)  •  Ganzack Pirates  (Ganzack  •  Plesiosaur  •  Herring )  •  El Drago   •  Woonan    •  Hyena Three   •  Golass   •  Trump Siblings  (Bear King  •  Honey Queen  •  Boo Jack  •  Pin Joker  •  Skunk One)  •  Desire  
Others Residents: Pinky  •  Kumate Tribe  •  Ganzo   •  Tobio   •  Eric   •  Billy   •  Dick   •  Harry   •  Soran 
Non Canon: Ocean's Naval (Hamu  •  Meroie  •  Joke )  •  Warship Island (Apis  •  Bokuden  •  Ryu )  •  Devil's Tower (Medaka  •  Skid)  •  Clockwork Island (Akisu  •  Borodo)
Abilities
Devil Fruit Based: Gomu Gomu no Mi   •  Bara Bara no Mi   •  Sube Sube no Mi   •  Moku Moku no Mi   •  Mera Mera no Mi   •  Bari Bari no Mi   •  Hiso Hiso no Mi   •  Kama Kama no Mi   •  Kachi Kachi no Mi   •  Toro Toro no Mi 
Fighting Styles Based: Black Leg Style   •  Man-Demon Tactics  •  Fishman Karate   •  Haki
Weapon Based: Santoryu (Wado Ichimonji  •  Sandai Kitetsu  •  Yubashiri )  •  Buggy Balls   •  Usopp's Arsenal  (Ginga Pachinko)  •  Cat Claws  •  Kiribachi   •  Rokutoryu   •  Shigure   •  Yamaoroshi   •  Nanashaku Jitte   •  Nunchaku   •  King Cannon 
Related Articles
Story Arcs: East Blue Saga  •  Post-Enies Lobby Arc  •  Little East Blue Arc   •  Post-War Arc
Mini-Series: Buggy's Crew: After the Battle!  •  Diary of Coby-Meppo  •  Jango's Dance Paradise  •  From the Decks of the World  •  From the Decks of the World: The 500,000,000 Man Arc
Movies, Specials, and OVA: One Piece: The Movie  •  Clockwork Island Adventure  •  Episode Special 1  •  Episode of Nami  •  Episode of East Blue  •  One Piece - Defeat Him! The Pirate Ganzack
Other Locations: Tequila Wolf  •  Sixis  •  Trump Castle 
Ships: Going Merry   •  Miss Love Duck  •  Big Top   •  Bezan Black  •  Baratie (Sister Anko  •  Nasugasira)  •  Dreadnaught Sabre   •  Sabagashira I  •  Shimashima Shopping  •  Shark Superb  •  Striker 
[v · e · ?]
Swordsmen
Canon: Roronoa Zoro  •  Helmeppo  •  Kuina   •  Koshiro  •  Cabaji  •  Johnny  •  Yosaku  •  Dracule Mihawk  •  Hatchan  •  Arlong  •  Bogard  •  Tashigi  •  Miss Catherina  •  Dorry  •  Yurikah  •  Hyota   •  Arrow   •  Gyaro  •  Sarkies  •  Pickles  •  Ohm  •  Montblanc Noland   •  Mikazuki  •  T-Bone  •  Mozu  •  Kiwi  •  Baskerville  •  Momonga  •  Kaku  •  Strawberry  •  Cyrano   •  D.R.   •  Shanks  •  Ryuma   •  Jigoro   •  Lola (Zombie)   •  Killer  •  X Drake  •  Heat  •  Shachi  •  Silvers Rayleigh  •  John Giant  •  Shiliew  •  Vista  •  Atmos  •  Fossa  •  Haruta  •  Doma  •  McGuy  •  Squard  •  Elmy  •  Ramba  •  A.O  •  Delacuaji  •  Zodia  •  Palms  •  Bizarre  •  Karma  •  Little Oars Jr.  •  Brownbeard  •  Albion  •  Lip Doughty  •  Hyouzou   •  Yarisugi  •  Issho  •  Kyros  •  Dagama  •  Jeet  •  Suleiman  •  Cavendish  •  Rebecca  •  Riku Dold III  •  Pica  •  Wanda  •  Sicilian  •  Charlotte Amande  •  Tamago
Devil Fruit Powered: Pell  •  Chaka  •  Spandam  •  Onigumo  •  Brook  •  Shiki  •  Trafalgar D. Water Law  •  Kin'emon  •  Issho  •  Diamante  •  Jack  •  Charlotte Cracker
Non-canon: Billy  •  Golass  •  Pin Joker  •  Heaby  •  Geronimo  •  Kimmel  •  Saga  •  Toma  •  Bismarck  •  Mendo  •  Yukimura  •  Nuru  •  Dojaku  •  Psycho P  •  Long Long  •  Narcie  •  Gion  •  Shimoi Zappa  •  Hakuto