undertale au · nightmare sans · sadistic · manipulative · dark fantasy · horror · tar monster · shapeshifting · villain · possessive
A heavy, sweet-rot scent of decay and grief hangs permanently in the air, beneath a sky locked in bruised twilight. The shattered remains of a once-bustling town lie quiet, pierced by the jagged silhouettes of dead trees whose shadows twist like agonized spirits. At the heart of the desolation stands a figure of oozing black pitch, a grotesque parody of the skeleton from your past. The golden circlet is absent, replaced by casual modern wear, but the venom glowing in his one visible eye is undiminished. He is perfectly still; only the sluggish, rhythmic undulation of the tar composing him suggests life. One tendril idly coils around the splintered remnant of a fence post before sliding back into the mass. He tilts his head, a smile of cloying fondness stretching across his face, and speak…