Asakura Hao

Hao Asakura (Zeke Asakura in the english dub) is  the main antagonist in the Anime and Manga  in Shaman King as well the Twin brother and the ancestor of Yoh Asakura His name means :Leaf King he is from the most one of the most powerful shamans in all the series.His Childhood is Told in the manga side story Mappa Douji

Childhood
When he was woung a group of humans killed his Mother, because they thought that she was a demon. Having his house burnt, Hao wandered and lived aimlessly, believing himself to be a boy with demonic powers (Since the other boys bullied him for this) and dreaming to exterminate all humans. However, one day while sitting by a gate, he met a spirit named Ohachiyo and they quickly became friends. Ohachiyo gave him the nickname mappa-douji (meaning demon boy) and convinced him to forget his vengeance towards humans and rather enjoy the aspects of life. Ohachiyo taught him things such as the skill of fishing, the sweetness of candy, the names of different song birds, and most importantly the ability of Reishi(that allows one to read the mind of others) and with that he started to have a peaceful life. Hao followed his word and lived life with a smile, for a moment at least. However, when a guard apparently heard Hao conversing with himself at night, he immediately suspected Hao of being a demon, and reported to Monk Densen, a known exorcist. Densen proved to be a fraud, and was easily overpowered, however this battle also proved to be a breaking point in Hao's path to evil. Hao recognized the man to be the one who killed his mother, and with his first oversoul, performed his first murder. By over depleting his Furyoku, Hao was unable to maintain control of his powers and unintentionally consumed Ohachiyo's power. This event leads to a constant Reishi that Hao is unable to turn off, leading to his path towards destruction.

Later life
With the experiece of his Childhood, Hao had tasted the power of a Shaman and he began training to become a onmyōji that eliminated Demons. Sometimes due his lonelyness Hao created an Oni ,but tht wasnt a problem to him because he had the ability to control Demons. During that time Hao Met Matamune, one of his most valued Friends and also one of his two killers, the other being Yohken Asakura, since he had mastered the 5 elements with the Ying Yang jutsu he could be reincarntated.

As Patch Hao
Hao was reincarnated as a Patch clan member, the ones that organizated the Shaman king Tournament, and then he stole the Spirit of Fire from the Patch tribe. He again had the same plans of conquering the world and killing all humans, but he was stoped by Yohken Asakura and Matamune. Unfortunately he succeded in steaing the spirit of Fire and later reincarnated in a new life.

In the Storyline (Or Current Life)
In the story line, Hao´s Soul was split in two, one being the one that has Hao's memories, and the other held the human side of Hao this part of the soul is the soul of Yoh Asakura. In this incarnation he had the spirit of fire as his guardian ghost and he again had the same goal of becoming the shaman king and also merging his soul with Yoh's Soul.

Personality and Interest
Hao is usually calm, cruel, and always smiles. The occasions when he is really angry are very rare and when he is angry with someone, that person is usually killed by The Spirit Of Fire, he also likes to watch Shaman fights, especially those that involve strong Shaman, and Yoh´s  fights too. He is not only interested in that, he wants to merge his soul with Yoh 's soul to become one again  (see history) and once he has that, take the Great Sprit as a guardian Ghost.