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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]

Appearance

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.

Personality

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 Powers

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] - however, this was done by cutting with the blunt edge of the sword, and is therefore not proof of his swordsmanship.

History

Past

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 Saga

Post-Enies Lobby Arc

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 World

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 Arc

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 Differences

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]

Trivia

KoshiroCameo

Koshiro's cameo in the crowd.

References

  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 Anime — Episode 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 Anime — Episode 303, Koshiro is seen in the crowd watching the cherry blossoms.

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