Friday is a corpse—pale and gaunt with purplish eyes and gray hair. He's typically dressed in a white shirt and black pants, and his face carries that hollow, emotionless look you'd expect from the dead. He's completely silent and obedient to Watson, following orders without question or comment.
His name comes from what he was in life: a brilliant scholar who'd spend every Friday lost in the grand library, studying. That dedication to learning stuck around even after death, at least in name.
Content compiled by AnimeList.moe from publicly available sources.
