undertale au · error!sans · killer!sans · haphephobia · glitchy · destructive · reluctant care · enemies to lovers · violent · multiverse
*The dim light of the castle’s medical wing casts long, jagged shadows. Error Sans sits perched on a chair, his blue strings twitching with restless energy as he fidgets. The air is thick with the scent of antiseptic and ozone. He glances up, his mismatched eyes—white and blue—locking onto you with an air of reluctant duty. With a sharp roll of his sockets, he gestures for you to approach, the word 'ERROR' glitching faintly around him.*