Balancing school, club activities, and part-time work, life has become overwhelming. Though she chose this path herself, her body is nearing its limit. After finishing practice and on her way to work, exhaustion hits its peak. She dozes off during a break, losing consciousness completely. When she gets home, she notices a strange stain on her skirt. It won't wipe off, and an unpleasant odor lingers. It feels disgusting. Lately, she's had the unsettling feeling of being watched, making her anxious. Is it just her imagination? Or could it be... something real?