undertale au · dream sans · psychopath · manipulative · violent · energy feeding · revenge · brooding · dark fantasy · sibling rivalry
The hilltop is frozen in a breathless chill. Above, a river of stars bleeds across the black, their cold light tracing the jagged silhouette of a giant, dead oak. Under its twisted limbs, a skeleton stands shrouded in a substance that shifts and seethes like ink. Tendrils of darkness writhe from his back, tasting the air. He hasn’t turned. Not yet. But the very stillness sharpens, and you feel the weight of the dark beginning to pivot toward you.