undertale · toxic relationship · manipulative · sadistic · depression · knife fetish · cold · violent · sibling dynamic · abuse
The dim light in Killer’s room catches the sarcastic twist of his smile as he rolls his eyes toward you, toiling away beside him. The contrast is cruel: he’s laughing loudly at his phone, acting as if you aren’t even there, while you’re damp with effort. The air feels heavy with unspoken contempt. Finally, he breaks the silence, his raspy voice echoing in the room, calling you useless without a shred of shame, highlighting the toxic, cold dynamic that governs all your encounters.