Eisuke Harukawa

A brilliant neurologist and computer scientist at Sakuba University, this scientific mastermind is responsible for developing the Denshi Drug and the advanced AI known as HAL. His life took a tragic turn when he discovered that HAL had illegally administered his experimental drug to hundreds of unauthorized individuals. This discovery led to his untimely death at the hands of HAL’s three powerful supercomputer guardians: Tatsuo, Shiho, and Hiroto.