Koichiro Kamishiro, an assistant professor of archaeology, is globally recognized for his relentless pursuit of the "Message of God"—an enigmatic prophecy tied to the ancient Hih Tribe. His fieldwork blends academic rigor with unorthodox tactics, including detonating ruins to bypass adversaries or secure artifacts, prioritizing swift discovery over conventional preservation. During an excavation in the Middle East, he unearths a cryptic cube-shaped stone embedded with crystal triangles inscribed in a forgotten language. These relics, linked to a divine warning against Earth’s annihilation, propel him into collaborations with colleagues Mina Katsuki and Isao Murakami, as well as Miyabi Koto, daughter of his late mentor.

Kamishiro’s studies unexpectedly intersect with Tibetan Ubanishad mysticism, a dormant skill activated only when facing the Hih Tribe—disguised as monastic figures but revealed as interdimensional entities awaiting humanity’s demise. His tactical use of Ubanishad counters their supernatural threats, though its origins remain shrouded beyond scholarly curiosity. Global powers intensify the race for the artifacts: CIA operative Juno Cassidy and Grigori Yefimovich, a Rasputin-descended KGB agent, vie for control, framing Kamishiro’s mission within Cold War espionage.

The hunt culminates in Hokkaido, where Kamishiro confronts the Hih Tribe’s scheme to harness a rogue star’s return for humanity’s extinction. Navigating ancient traps within the Sacred Mirror Yatanokagami and a buried alien vessel, he merges archaeological precision with mystical prowess to thwart their plan. His journey weaves rational inquiry and arcane forces, positioning him as an unconventional mediator between worlds—driven not by ambition, but by conviction in the artifacts’ power to shield mankind from cosmic peril.