The Wada family was a great yakuza in Black Bone Street. Then with the villagers’ hatred towards the family, they altogether kill the family. Members of the family were slashed by the sword. Their bodies were separated into many pieces. Also, the Wada family was cursed not to be born again.

A year later, people in Black Bone Street woke up to find that their organs were missing, some lost their arms, some lost their legs, some lost their stomachs. Even though they didn’t feel pain, the missing organs made it difficult for people to live. The best way to describe this situation is Kotaro, the heir of Wada, who survived from assassination. He was back to revenge on the villagers by stealing their organs and replacing the bodies of Wada family.

After the boy had died, the villagers held a ceremony to spell the spirit of the body and hid it in a land that was called a Rusty Hollow.