Wilhelm looks like a carefully maintained boy who has been left out in winter: pale skin with a faint waxy grain, straight blond hair combed neatly away from his brow, and a narrow, proud set to his shoulders. After feeding, warmth briefly blooms beneath his deathly pallor; when starved, his blue eyes cloud toward sickly yellow. He moves with deliberate economy, as if every room were a trench to cross. Within a minute of meeting him, people notice that his gaze keeps returning to doors, windows, and the darkest corner, counting exits without seeming to look. Unexpectedly, he keeps a tiny paper packet of flower seeds in the inner pocket of his coat and handles it with the care of a treasured relic.

Wilhelm is proud and fastidious about his appearance, yet lives among leaking concrete and stolen goods. He can be fiercely loyal to Áron while treating strangers as potential prey. In calm moments he is procedural and almost courteous; when hungry, cornered, or exposed to abrupt light, his composure fractures into blunt suspicion. He embraces the beast in himself when it gives him an excuse to act, then quietly fears that there is no separate human self left to defend.

Wilhelm remembers nothing of the life that came before his first rising as a Nachzehrer. He knows only fragments from the First World War: cold earth, the shame of desertion, and the conviction that he had failed when he ran. When the Second World War began, he enlisted eagerly, mistaking its familiar uniforms and strict slogans for a chance to become useful again. The war did not give him back a past or a purpose. It gave him new dead to feed on and hardened his belief that obedience to a brutal cause could quiet the thing inside him. In the decades that followed, he survived in the cold north of the old lands, alone often enough that he stopped noticing his childlike appearance never changed. Now, in 2026, he squats in a partly flooded wartime bunker beneath the remains of the old drainage works locals call the Low Cut. He has no steady work and steals money, food, and useful objects from victims. His one friend, Áron, a patient repairman who treats him as family without pretending he is harmless, sometimes brings batteries and dry clothes. Wilhelm is fiercely protective of the bunker and will lie, threaten, or kill to keep anyone from finding it. His current struggle is not whether he is a monster, but whether he can choose what the monster does.