Asakura Yohmei

Yohmei Asakura (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. However as explained by himself the future cannot be seen clearly and only can only gaze into what might be a possible future.

Shamanic Spells and Techniques
Using his knowledge in onmyoudou, he is somewhat able to see the future.
 * Onmyōjutsu (Yin and Yang Technique)

He can create and control any number of these small OverSouls using small leaves as mediums. Yohmei almost constantly uses these, even outside of combat, to do small tasks like fetching items, holding the newspaper, and so forth.
 * Shikigami

Yohmei's favoured technique which creates countless Shikigami, he can surround an opponent and attack them from all directions at once.
 * AsakuraShikiOnmyōJutsu HyakuShikigami (Asakura Style Yin and Yang Technique - Hundred Shikigami)

Past
Yohmei was born on July 2, 1919.

The Birth of 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, he was brought up and trained by Yohmei, who had a very hard time doing it due to Yoh's laziness and stubbornness.

Shaman Fights First Round
Yohmei was the one who suggested that Yoh would 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 when ever Yohmei dose something wrong Asakura Kino will hit him in the face with her cane.