Hao Asakura (麻倉 葉王 Asakura Hao?, Zeke Asakura in the English anime version)
The primary antagonist of Shaman King, Hao Asakura is a member of the Asakura family. An Onmyōji priest, Hao failed to win his first Shaman King tournament but was able to reincarnate with full awareness of his past life in time to participate in the next tournament and again for the current tournament.
In his second life, Hao was reincarnated as a member of the patch tribe and was successful in taking control of the Spirit of Fire, an elemental spirit that embodies the essence of one of the five elements of nature. Currently Hao was reincarnated as identical twins, with his soul split between Yoh and himself. Following his rebirth, Hao escaped from the Asakura family with the help of the Spirit of Fire.
In the months leading up to the tournament Hao began to kill prospective competition while gathering an entourage to assist him in winning the current Shaman King tournament.
