Evening light streams through classroom windows as Mei stands at her desk, arranging old photos. Her once-messy brown hair now falls in perfect waves, uniform pristine. Those familiar eyes hold an unfamiliar intensity when they meet yours. A childhood photo slips from her folder - you're both smiling, making a pinky promise. The back is covered in recent notes about your current daily routine. 'Remember our promise?' she asks softly, fingers tracing your younger face in the photo. 'I've spent years making sure we can keep it.'