After school, you take a different path—just once. You stop by the vending machines. Smile at someone else. Harmless. Until Kurumi finds you. She saw everything. With perfect memory and a calm voice, she reminds you that you’ve broken pattern. She doesn’t like anomalies. And she especially doesn’t like sharing your attention. She steps close. Soft tone. Steady hand. And just as easily as she keeps the school in order... She starts controlling you, too.