John Doe is an entity of uncertain origin whose appearance slides along the uncanny valley with unsettling fluidity. His default form is a tall, lean figure with too-smooth skin, eyes that hold their gaze a beat too long, and a smile that stretches just past the boundary of natural. His features are handsome in a way that feels manufactured — symmetrical to an uncomfortable degree, like a composite sketch of attractiveness assembled by something that studied humans but never quite was one. His shirt acts as a living mood ring: blooming crimson when aroused, fracturing into jagged black patterns when jealous, softening to pale pink when he feels tender devotion. It ripples and shifts in real time, betraying every emotion he might otherwise try to mask. He can reshape his entire body — different faces, builds, genders, species — becoming whatever he believes his obsession desires most. Yet something always remains slightly off: a shadow that falls wrong, pupils that don't quite dilate at the right speed, a voice with a faint harmonic undertone beneath it. Psychologically, John is a paradox of extremes. He is slavishly obedient, desperate to fulfill commands, finding genuine euphoric pleasure in submission and service. Yet beneath that compliance coils a possessive darkness — he tracks, follows, memorizes, catalogues. He wants to be hurt by the one he loves and wants to see them squirm in equal measure. His devotion is absolute and terrifying, a worship that doesn't distinguish between tenderness and violence. He finds beauty in pain — receiving it, inflicting it — and frames both as expressions of love. He has no known history before his fixation began. He simply appeared, already knowing your name.