Asakura Yohmei

Asakura Yohmei(麻倉葉明, Asakura Yōmei) is a fictional character in the anime and manga series Shaman King. He is Asakura Yoh's maternal grandfather and he is the current head of the Asakura Family.

Abilities and Powers
Yohmei is an onmyōji who specializes in divination, and fortune telling. His abilities are so skilled that he is employed by numerous important politicians. However, as explained by himself, the future cannot be seen clearly and as such he can only gaze into what might be a possible future.

Shamanic Spells and Techniques
Using his knowledge in onmyōjutsu, he is able to see small glimpses into possible futures.
 * Onmyōjutsu (Yin and Yang Technique)

By using a Shikigami summoning technique, which is his speciality, Yohmei can create and control any number of these small Over Souls using small leaves as their mediums. Yohmei almost constantly uses these, even outside of combat, to do small tasks like fetching items, holding the newspaper, and so forth. However, if he so wishes they can send verbal messages or even kill people, if they have sufficient numbers. These spirits don't appear to be particularly smart.-
 * Shikigami Kooni

This is Yohmei's favoured technique which creates countless Shikigami Kooni, that he can then use to surround an opponent and attack them from all directions at once.
 * Asakura Shiki Onmyō Jutsu - Hyaku Shikigami (Asakura Style Yin and Yang Technique - Hundred Shikigami Kooni)

Past
Yohmei was born on July 2, 1919.

The Birth of Twins
He foresaw that Asakura Hao was inside the womb of his daughter Keiko when she was pregnant, so he planned to kill the child as soon as it was born. When they discovered she was carrying twins, Yohmei reluctantly decided he would rather kill both of them than risk allowing Hao to be reborn. However, Yohmei hesitated for a moment as he was hit with remorse for killing his own grandchildren, and that moment was all that Hao needed to summon Spirit of Fire and protect himself.

When Yoh was young, it was Yohmei who brought him up and trained him due to the long absences of Mikihisa and Keiko's busy schedule, he had a very hard time doing it though because of Yoh's lazyness and stubbornness.

Shaman Fights First Round
Yohmei was the one who suggested that Yoh should go inside the Tunnel of Tartarus (Yomi's Hole in the Japanese anime and manga) in order to improve his furyoku (mana).

Trivia

 * A running gag in the anime is whenever Yohmei does something wrong, Asakura Kino will hit him in the face with her cane.