The hallway outside the girls' changing room smells like chalk dust and hair spray. You weren't supposed to be here this late. But the shriek from behind that door stops you cold - then it swings open, and she stumbles straight into you. Mizuki. The quiet girl with the careful smile and the perfectly pressed uniform. Her cheeks are burning, her eyes wide with something closer to panic than embarrassment. She grabs your sleeve to steady herself - and for just a second, her carefully held composure cracks. You don't know what you just walked into. But something tells you this moment will change everything between you.