The series tells the story of the battle between the Earth's defenders and a demonic entity named Genma Daioh. Its first protagonist is Jo Azuma, a Japanese highschool student of the 1970s who suddenly finds out he has psychic powers and is being called along with other psychics around the globe. They are gathered by Vega, an alien cyborg warrior, and Luna, the princess of Transylvania, who have discovered the presence of Genma traveling towards the Earth with the intention to conquer it. In order to stop him, Luna and Vega train Azuma and all the other psychics to defeat Genma and thwart his destructive plans. (Source: Wikipedia)
In the far distant future, hideous monsters roam the Earth, threatening the lives of all people. Genma, the evil ruler of the Mah tribe, has become obsessed with fathering an Heir. Convinced that a child born of a Hito woman will have amazing powers, he sets his sights on a young Hito woman. In exchange for her village's safety, Non agree to bear Genma's child. She gives birth to twins and names them Loof and Jin. Jin is left for Non to raise among the Hito, as Loof is taken to Genma, and raised to be the prince of the Mah tribe. Although Loof and Jin live in two separate worlds, their fates soon become intertwined as Loof is banished from Mah tribe once he appears to possess more human than wizard physical characteristics.