Yun Ka-fai

Yun Ka-fai (ユン・カーファイ), also known as the Sword Hermit , is a renowned swordsman from Calvard. He is the founder of the Eight Leaves One Blade school which combines the best elements of multiple Eastern sword styles.

Appearance
Yun is an elderly man with a slender but muscled appearance. He has brown eyes, long gray hair which is tied up and a bushy beard, moustache and eyebrows. Yun wears traditional eastern clothes, consisting of a loose martial arts uniform in brown and black over white, knee length hakama and bandages wrapped around his forearms and shins. He also wears flat slippers.

Background
Yun Ka-fai dedicated his life to swordmanship in favour of wordly affairs. He travels around the continent, spreading wisdom and bringing gifts to the locals he meets. He is known to frequently visit Ymir in Erebonia, where he introduced the Eastern delicacy Manjuu, cranes made of fuki leaves, and the drink Junmai-shu.

During these travels he is occasionally challenged to duels by his former students such as Cassius Bright and Arios MacLaine or respected swordsmen from other schools such as Victor S. Arseid.

It is suggested that Yun is associated with the Ikaruga group of mercenaries and the Black God One Blade fighting school used by them.

He is the grandfather of bracer Anelace Elfead.

Yun Ka-fai is mentioned in passing when his granddaughter Anelace when she visits Cassius Bright at Leiston Fortress.

Although never appearing in person, Yun Ka-fai took on Rean Schwarzer as his last apprentice. He would visit Ymir, where he taught both him and his sister Elise Schwarzer the style (although the latter only received minimal instruction). He taught Rean techniques that would help him best his ogre power. He would communicate to Rean through letters, sending him notification when he was deemed to be worthy of the intermediate and then finally master rank through Cassius.

Later in the arc, it is mentioned he has seemingly travelled east, and is being tailed by the Erebonian Intelligence Division's foreign affairs branch.

After hearing a rumour about his whereabouts, Rean travels to Longlai, hoping to find Yun. he is unsuccessful, being told by the Ikaruga member "Hime" that "Master isn't here".

It is later reveal that the "Hime" from Ikaruga is the hidden disciple of Yun, similar to Van being Bergard Zeman's disciple.

Letters
Throughout the Cold Steel series, Yun Ka-fai sends letters to his last student, Rean Schwarzer.

Cold Steel III=