Professor K, an enigmatic strategist, masterminds the dispatch of five microscopic champions—the Microman—from the distant world of Micro-earth to Earth. Concealed within action figures delivered via a cryptic package to schoolboy Kohei Kuji, these heroes are tasked with thwarting Acroyer, a malevolent entity scheming to dominate the universe by subjugating Earth. Professor K’s clandestine operation empowers Kohei as Earth’s defender, positioning the professor as a shadowy architect of the planet’s salvation. The origins and history of this elusive figure remain veiled, with no documented affiliations, personal interactions, or expanded role beyond catalyzing the Microman’s mission across existing media. His influence persists solely through the heroes’ activation, anchoring his legacy in their foundational struggle against cosmic annihilation.