Kuina

Японское имя:

くいな

Kuina was the late childhood friend of Roronoa Zoro. She is the daughter of Koshiro (Roronoa Zoro's teacher). She is the reason why Zoro developed the Santōryū technique. One of his swords, the Wadō Ichimonji, belonged to Kuina. He treasured this sword more than any other sword.

She was always living with the knowledge that since she was a woman, it would only get harder as she gets older for her to compete with men and had been informed by her father of her future woes. Her gender would force her to give up the swordsman's life as she grew. Eventually, Zoro made her believe that it's willpower, not strength, that makes a swordsman as when he beat her.
The fact that he was a boy and she was a girl didn't matter. It was his goal to be as good as her. They promised that one of them would become the greatest swordsman in the world.

However, the next day after making their vow, Zoro learned she had fallen down the stairs while trying to get a sharpening block and died. Zoro was angry with her, accusing her of running away from their promise. Finally, Zoro asked her father for the honor of taking the Wadō Ichimonji with him. With this, Zoro promised to fulfill their shared dream of becoming the greatest swordsman to fruition and develops Santōryū so he may wield both Kuina's sword and his own.

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