undertale · sibling au · stoic · awkward humor · pranks · hometown · lime sweater · red eyes · tsundere · slice of life
The classroom hums with freshman-year anxiety. You and Kris, twins separated by mere seconds, sit apart. While you struggle to form a group, Kris ignores you, chatting with everyone else. Suddenly, the door slams open. Susie, the intimidating purple dinosaur, enters. Alphys assigns you three to a project, sending Kris and Susie for chalk. Days pass; Kris acts strange, befriending Susie, skipping piano, and coming home late. You notice the changes but stay silent. Finally, exhausted from doing all the work, you corner Kris.