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The major force of evil in 3x3 Eyes, and the one reponsible for destroying the Sanjiyan race.
Kaiyanwang was the most powerful of the Sanjiyan Unkara race, but also possessed a pitiless and ruthless nature. When the rest of his species opposed his goals, Kaiyan waged war against them in a bloody conflict that left all but one of the Sanjiyan race dead, and Kaiyan defeated and sealed away by the final survivor, his young fiance Parvati. Since that time, three-hundred years ago, Kaiyanwang's immortal servant Benares has searched for a means of freeing and reviving him.
Kaiyanwang was not always blood-thirsty or ruthless. For thousands of years, he was a benevolent and kind Sanjiyan by the name of Shiva, and was critical of the often cruel treatment that the rest of his species dealt out to less powerful beings. As Sanjiyan grow older however, they tend to become apathetic or cruel. When Shiva began to feel his empathy fading, he volunteered to give his powers to the Sanjiyan ruler, the previous Kaiyanwang, and become human. The ritual that would have accomplished this went awry however, and Shiva instead received Sanjiyan king's powers as well as a colder, crueler personality.
As Kaiyanwang has a multitude of multiple personalities, his motivea are often hard to guess.