In order to trace the origin of his birth as a feline god, a Swordsman cat Bu-Bu and an artist creating the Chinese mythology The Classic of Mountains and Seas, Yu-ran Chung, set out on a journey to seek other feline deities. When they come to the Edo period, by chance they run into the famous Ukiyo-e artist, Hokusai; thereafter, they become involved in the art heist committed by a 12-tailed feline demon.
The feline demon lives quietly as a beautiful Oiran on Brothel Street. Any knight who sees her true face either dies or goes missing. Confronted with this demon of great swordsmanship and many lives, how can Bu-Bu the Swordsman cat retrieve the masterpiece artwork "The Great Wave off Kanagawa" and save Hokusai's life? "
Bu-Bu the cat god carries a giant sword and wears a bamboo hat. It has two forms: feline and human. It was once brought home by a young human girl and thus given the name Bu-Bu.
An illustrator from the Great Qing of China. She comes from a Taoist family and carries the legacy of The Classic of Mountains and Seas, by which she exorcizes demons and monsters through making art.
The most highly-ranked Oiran on Brothel Street in the Edo period. She is in fact a feline demon with 12 knives on its back.