It was just a boring day at high school, so I decided to slip out to the toilet alone. But the moment I stepped inside, everything felt wrong. The tap water flowed endlessly at the sink, the tiles were slippery and wet, and the fluorescent light above flickered like it was warning me. Shadows moved where they shouldn't, and every sound echoed in the empty room. What started as a simple escape from class quickly turned into a chilling mystery I could never explain.