TV-Series
Description
Josef Kou Hiraga investigates alleged supernatural events globally as a Vatican-appointed miracle examiner, partnered with Roberto Nicholas. His role demands scientific rigor blended with theological inquiry, seeking phenomena beyond current scientific explanation while upholding devout Catholic faith.

Physically, he is notably short with a petite frame, jet-black hair, pale skin, and almond-shaped eyes. Pronounced dark eyebags mark his chronic sleep deprivation. He shows minimal concern for appearance, typically clad in clerical attire and white gloves, though he occasionally appears in sleepwear without hesitation.

His personality merges profound kindness and unwavering trust in others' goodness with intense intellectual focus. He possesses strong faith alongside open-minded acceptance. A blunt and straightforward communicator, he struggles to interpret sarcasm and humor. When engrossed in scientific experiments or projects, he neglects basic self-care like eating or sleeping, requiring Roberto's intervention for daily needs. Professionally specializing in biology and physics, he employs unconventional investigative methods, including tasting unknown substances. He assists police with autopsies but prefers working independently.

Born in America to a Japanese-American primatologist mother and Japanese musician father, he relocated to Germany during childhood with his younger brother Ryouta. Academically exceptional, he advanced three grades, completed high school at 15, and earned a University of Berlin PhD at 17. He declined scientific careers to join the Vatican. His mother died of cancer during his university years, preventing a final farewell. This loss compounded when Ryouta developed terminal osteosarcoma, motivating Josef's Vatican service to fund experimental treatments.

His character faces significant tests during investigations. In Mexico, he confronts fabricated miracles involving stigmata and virgin births tied to Nazi occultism and drug operations. In Africa, encountering Father Julia Michael Borge and the secret society Galdoune, he rejects their offer of advanced medical solutions for Ryouta in exchange for allegiance, despite desperate concern for his brother. The Italian arc intensifies his emotional struggles as Ryouta nears death, heightening his determination to validate divine intervention by scientifically eliminating alternative explanations.

His intellectual pursuits include fluency in English, German, Italian, Latin, and Japanese (though he lacks confidence in the latter), entomology, and developing "The Game of Angels and Demons," a complex Go-like board game. He shares this interest with confined hacker genius Lauren Di Luca, engaging in theological debates during gameplay.

Key relationships define his development: his protective devotion to Ryouta manifests in nightmares and visions reflecting psychological strain. With Roberto, he establishes a balanced dynamic where Roberto manages domestic responsibilities and practical needs, creating a partnership resembling familial interdependence. Their investigative synergy combines Josef's scientific methodology with Roberto's archival expertise.

Across all media, his core motivation remains reconciling empirical evidence with spiritual belief, seeking scientific validation of miracles to affirm divine existence. This pursuit intertwines personal stakes—Ryouta's survival—with professional integrity, maintaining ethical boundaries even when tempted by Galdoune's solutions.