Kaiho Ko is a Japanese Buddhist monk who collaborates with Tibetan lamas to oppose a group of Nazis attempting to revive dark powers through occult rituals. He joins fellow Buddhist monks in safeguarding the dragon orb, an artifact that seals the powers of ancient dark gods. This group directly counters the Nazis, who possess a secret weapon: a young girl named Tomoko. Tomoko harbors hidden powers that the dragon orb can unleash. Kaiho Ko is both an exorcist and a skilled sword fighter. During his mission to protect the orb, he encounters Kujaku, a young Buddhist monk with emerging occult abilities, and allies Onimaru and Ashura. Their conflict spans multiple locations, including San Francisco, China, Japan, Germany, and Tibet.