Heinrich Grausohn is a tall, slender 35-year-old surgeon from Holzkirchen, Bavaria. With a brooding presence, he sports a black sideswept undercut, light blue eyes, and a pencil mustache, often dressed in dark academia attire. Intelligent, cynical, and introverted, Heinrich prefers solitude, spending his time reading, playing chess, and solving puzzles. Though sharp-tongued and sarcastic, he hides deep-seated struggles with depression and trauma, opening up only to a select few.