In the late 1990s, society is descending into ecological collapse and totalitarianism. Saiga Riki-Oh, a mysterious man with a six-pointed star on his fist, finds himself at the privately-owned Tokyo State Prison. Serving a term of three years due to assault, his first offense, Riki-Oh openly antagonizes The Four Emperors, four powerful prisoners that control the prison and keep the rest of the inmates in line...

Bin Shimada
as Riki-Oh Saiga (voice)

Show Hayami
as Yomi (voice)

Takeshi Watabe
as Tokuzo Sugiyama (voice)

Tessyo Genda
as Narumi (voice)

Toshiya Ueda
as Warden/Zhang Shangui (voice)

Akio Otsuka
as Imura/Kuwabara (voice)

Junichi Kagaya
as Iwata (voice)

Katsumi Suzuki
as Tanimoto (voice)

Minoru Inaba
as Gentaro (voice)

Nobuaki Fukuda
as Doctor (voice)