Mei Onigami was surprised to find a strange round creature in her house. All it could say was "chimi". Her sisters, Mutsumi and Hazuki, agreed to let it stay until its owner came to claim it. Little did they know, more of the same critters would soon appear. When one of the sisters said the word "hell," twelve of these creatures showed up.
The Onigami sisters were shocked when a horned and fanged man covered in fur suddenly appeared. He was Jabberwock the Eighth, an envoy from Hell. He was sent to unleash a living hell on earth, but he found it difficult to survive in the human realm. The Onigami sisters allowed him to stay with them, and they also took in his "Chimimoryo spirits". These round demons had come before his arrival.
Jabberwock was known as Jigoku-san by the Onigami sisters. He had to survive the everyday hells of human life before he could take over the world. But he was determined to do it.