Yohken Asakura is a fictional character

Fictional character

A character is the representation of a person in a narrative work of art . Derived from the ancient Greek word kharaktêr , the earliest use in English, in this sense, dates from the Restoration, although it became widely used after its appearance in Tom Jones in 1749. From this, the sense of...

 in the anime and manga series Shaman King

Shaman King

is a Japanese manga series written and illustrated by Hiroyuki Takei. Shaman King follows the adventures of Yoh Asakura as he attempts to hone his shaman skills to become the Shaman King in the Shaman tournament....

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Yohken Asakura is an ancestor of Yoh Asakura

Yoh Asakura

is the main protagonist in the anime and manga Shaman King. In the original Japanese anime, his name has been inconsistently romanized as Yoh, You or Yō; while in the English adaptations, his name is always romanized as Yoh. His seiyū is Yūko Satō, and his English dub voice is provided by Sebastian...

 who lived around 500 years ago, born on May 8, 1476. Following his duty as a member of the Asakura family, Yohken entered the Shaman Fight of 500 years ago to defeat Hao Asakura. He successfully accomplished the task with the help of Matamune

Matamune

Matamune is a fictional character in the Shaman King manga.Matamune, who appears in volume 19 and 20, is not in the Shaman King anime. Matamune is a Nekomata, a type of cat spirit with two tails; he also carries around a pipe with him and wears a necklace with three bear claws...

, Hao's former companion.

After his death (which was not mentioned, but most likely shortly after he managed to defeat Hao), Yohken became trapped in Hell, trapped by the guilt he felt at having killed another. The memory of killing Hao stayed fresh in Yohken's mind, to the extent that he lost any conception of the passing of time, and didn't realize that 500 years had passed.

In the manga, when Yoh went to hell to train, Yohken was his first opponent. Yoh managed to defeat him and caused Yohken to come to his senses. Realizing what had happened to him, he taught Yoh a little more about the history of the Asakura family. Soon after, one of the Chou-Oni came and shattered Yohken's soul. After Yoh got back to the deserted Tokyo island, Yohken went with him and stayed with the rest of the Asakura family.

Abilities/Techniques

Over Soul: Oni-Goroshi (Demon Slayer)

Yohken's primary Over Soul. A gigantic sword Over Soul, that channeling Matamune through his Shakujou medium. Coincidentally, Yoh used this very same Over Soul as a young boy to slay a powerful Oni who had abducted Anna when both were young.

Fudou Kanashibari no Jutsu (Art of Arrestment)

One of Yohken's spell. It binds the target, and restricts their movement.

Kengai Douji (Sword-wielding Child)

A Gohou (Guardian Shikigami) which invokes the spirit of a child-like entity, whom wields a small sword and adorned with a mask and sword-laced necklace.

Shugen Kijin Shiekihou Gokugi Kamaizuna (Shugendō Supreme Demon-God Domination Technique: Vacuum Scythe Cords)

Yohken's ultimate technique, which was used to deliver the final blow to the Patch Hao.