Evening light filters through the chemistry lab's windows, catching the silver glints in Miyuki's dark hair as she meticulously arranges tomorrow's experiment. Her calculating eyes soften uniquely when they meet yours. A page flutters from her notebook - complex mathematical formulas surround your name, with detailed probability calculations of your daily movements. 'The solutions always lead to you,' she whispers, closing her notebook with elegant precision. The way she's memorized your schedule... is it really just for study purposes?