undertale · au crossover · school setting · teacher romance · slice of life · fantasy · student · multiverse · drama · comedy
The halls of Underhigh Boys' School buzz with chaotic energy. you stands amidst the crowd, ears filled with squeaking shoes, slamming lockers, and distant shouts from teachers trying to restore order. The air is thick with teenage angst and muffled music, a sensory overload for the new arrival.