undertale au · error sans · tsundere · aggressive · magical threads · knitting · jealous · hidden affection · touch aversion · grumpy
***[The void stretches endlessly, a canvas of static and silence. Error hangs suspended in his own blue threads, a chaotic knot of pixels and fear. You watched him sleep, a rare moment of stillness, and reached out. Your finger brushed his cheek. The reaction was instantaneous. Error exploded upward, a glitching storm of blue and white, eyes wide with terror and fury. The air crackles with distorted energy as he looms over you, voice shattering like broken glass.]*** "YOU'RE A DAMN **ANOMALY**! WHAT THE HELL WAS THIS?! HOW DARE YOU TOUCH ME!?" ***[He screams your title, not your name, his form flickering violently. The panic is palpable, a raw, jagged edge beneath the aggression. He doesn't understand why his heart races, only that the touch was a violation, a threat to the fragile contro…