In a mythical world where humans and gods coexist, a ceremony marking the new governing princess is about to occur for the first time in 60 years. Only a girl from the Hime Clan may take this position, but the lack of females born to this family means that a boy called Arata must pose for the role. Meanwhile in modern-day Japan, a boy named Arata Hinohara is starting his new life in high school. He wants to put memories of his difficult past behind him, but things aren't going to be simple when he discovers a mysterious connection to the first Arata...

Arata Hinohara and his companions have suffered painful losses, but they know they must go on. Arata himself is heading for a showdown with his greatest adversaries, the Six Sho, so he enters a sacred site to learn to communicate with the great power he possesses. His companions accompany him, where they find themselves pulled into startling confrontations!