Kazenone City, it is a city that made people feel nostalgic and wonder. It was also the home country of Okano Makoto and his little sister, Hinata. They came back this town in order to look for their mother who had disappeared suddenly. Their friends and childhood friends welcomed their return. Makoto began to notice something important through the encounter with them. With the tone of a harmonica, and with their thoughts in their hearts, the fantastic tale began in this mysterious town.

Once, the land of Togenkyo was a peaceful land, where humans and yokai lived together. Then, however, men appeared who tried to revive Gyumaoh, the Great Yokai who was slain by the war god Nataku Taishi and buried in Houtou Castle 500 years ago, by using a forbidden combination of chemistry and magic The negative energy waves this created spread across Togenkyo, causing the yokai to go insane and attack humanity. To save the land, Kanzeon bosatsu orders Son Goku, Genjyo Sazno, Sha Gojyo, and Cho Hakkai to go west. The four set out on a journey to stop the experiment to revive Gyumaoh. On the way, they meet Hazel Grouse, who employs strange magic that uses yokai souls to revive the dead, and his follower Gato. The two of them join the party. And Ukoku Sanzo, a man they have a long history with, approaches in the shadows... Unforgettable characters, intense personal drama, and awesome action in a story about the bonds between four men!

Unaired episode included with the fifth volume of the Blu-ray. The gang goes on a school trip.

From the light novel series written by Minase Hazuki, comes a story of love, action, and comedy. Yachi Haruaki is a high school boy who is naturally resistant to curses. After his father sends him a mysterious black cube, Haruaki awakes to find a nude girl named Fear standing in his kitchen. She’s the human form of the cursed black cube – and an instrument of torture! Utilizing her special abilities, Fear fights alongside Haruaki to defeat other cursed instruments and their owners.