Rokuro Naya

Aoba is a young girl who loves to build models of robots. She lived alone with her grandmother until her grandmother passes away. Shortly after she is kidnapped and brought to a secret base where she discovers a huge robot. The piloted robots fight against Ancient-Jinki in The Grand Savanna, but the true meaning behind the fights is hidden. Aoba works hard at the base so one day she can pilot one of the robots and discover these secrets.

One hundred Mamodo (lit. "demon") go to Earth every 1,000 years to battle to be the king of the Mamodo world. Each Mamodo needs a human partner in order to use his or her spell book, a book that seals the powers of the Mamodo. If the spell book is burned, the Mamodo is forced to return to the Mamodo world. The last Mamodo standing without their book burnt is the new Mamodo king.

Shindou Hikaru, a 6th grader, finds an old go table in the attic of his grandfather's house. He sees some blood stains on the go table, and tries to wipe it off... when a ghost dressed in Heian period clothes pops out, and takes over his body.The ghost happens to be Fujiwara no Sai, a member of the court during the Heian period. Sai was one of the two men who was assigned as the go tutor to the emperor. The other tutor was envious of Sai, and challenged him to a go match - whoever wins gets to stay as the court's go master. Sai's opponent cheats during the match, and before Sai could say anything about it, the opponent accused Sai of cheating. Sai was banished from the court, and because of regret and anger, he committed suicide. But as with all unrepented souls, Sai was unable to leave the material world... until he is able to master go, and get one step closer to kami no itte, or god's hand.

Yusuke Urameshi, 14, is the worst student of his class. He's always in fights and seems to always be the bad apple. Then one day it all changed. He died saving a little boy from traffic. Because of this self-less act he goes through an ordeal to get his body back...and he becomes a spirit detective. As spirit detective Yusuke goes on missions for the spirit world to eliminate demons and save the human world.