Noriko Suzukawa

Rokuheita Narumi is fascinated by oriental art and works as the director of the Saho Art Museum in Nara. His wife, Noriko, is unable to leave Tokyo, despite his wishes, and the two live separately. Feeling lonely and neglected by her husband, she immerses herself in the depraved life of the city and continues to have a loveless relationship with a doctor, Katsumori. One day, Narumi arrives in Tokyo and learns of Noriko's affair, but he cannot divorce her for the sake of their child, so he devotes himself to his work.

16 years after the fateful "revenge of the Forty-seven Ronin," involving samurais from the Ako domain who avenged their leader and then commited seppuku (ritual suicide), the sole survivor of that incident, Kichiemon Terasaka (Koichi Sato) traverses the country on a mission. His purpose is to find the families of the fallen samurais and spread the truth of the ronin uprising.

Beast-Fist is a form of martial arts where the powers of a beast can be acquired by sensing the beast in their hearts. There are two relative schools of the Beast-Fist. One, the Beast-Fist of justice, Geki Juken Beast Arts. And one, the evil Beast-Fist of Rin Juken Akugata. The two schools of warriors learn and change in order to increase in power every day, as they are destined to clash.