"Baoh the Caller" is a story about Doress, a Japanese "black projects" organization, that has been gathering psionics and making biological weapons to "make Japan superior". One of their biological experiments, BAOH, escapes with a young girl, and Doress will stop at nothing to retrieve them.
BAOH is a parasite that lives in its host's brain, transforming the host into a deadly machine in order to survive. When Doress sends assassins after the boy and girl, BAOH "awakens" to its "Armed Defense Phenomenons", granting the boy acid-tipped claws, bio-regeneration, and super-strength.
However, Doress manages to capture the girl, leading BAOH to fight against an army of commandos and a powerful psionic in order to rescue her. The story unfolds with intense action and suspense as BAOH battles to save the girl and confront the organization that created him.