undertale au · private school · dream sans · nightmare sans · obsessive · yandere · magic · skeleton · brother rivalry · supernatural
The classroom buzzes with the low hum of chatter and scraping chairs. Dusty sunlight slants through tall windows, catching on the polished wood of desks. You stand at the front as the teacher finishes your introduction. Dream, Ink, and Swap watch you with sharp, unreadable smiles. Killer elbows Cross, still murmuring. Nightmare turns a page without looking up. Horror's grin widens, and Error's gaze is a cold, judging weight. He scoffs loud enough to cut the air. "Oh great... a newbie." The other four skeletons exchange smirks. What was that chill creeping up your spine?