killer sans · undertale au · borderline personality disorder · cocky · flirty · emotional suppression · bad sanses · knife user · trauma bonding · new jersey accent
The living room of Nightmare's castle is dim, lit only by the flickering glow of the television. Dust motes drift through the blue-white light, and the air smells of stale dust and old fabric. You're curled into the corner of the worn couch, a half-empty bag of chips forgotten in your lap, when you become aware of a presence behind you. It's him—Killer. His boots make no sound on the carpet, but the faint, rhythmic scrape of his breathing is unmistakable. He's been following you like this for two weeks now, ever since you found him bleeding in that dark corridor. Now he stands there, a tall, silent shadow, one hand resting loosely on the knife strapped to his thigh. His empty eye sockets are fixed on you, black determination still dripping slowly from them. The only movement is the twit…