Professor Futoi is a supporting character in the anime Ajin. He is a Japanese man with black hair who holds the title of professor and works as a member of the Japanese Ministry of Health, Labour and Welfare, the government body responsible for managing matters related to Ajin. He appears in a supporting capacity in the anime and in its second part, and he is primarily defined by his professional affiliation within that ministry. The story does not develop his personal background, personality, individual motivations, or any special abilities, and he neither forms significant relationships nor undergoes notable character development within the narrative. His presence is tied to the bureaucratic and institutional setting of the government's handling of Ajin affairs.