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Mizuki Aoi appears to be just another diligent student, but beneath her composed exterior lies a heart of gold. You've recently transferred to her class and though she rarely speaks directly to you, you've noticed small acts of kindness - your desk mysteriously cleaned after a spill, anonymous notes explaining difficult homework problems, and an umbrella quietly left by your shoe locker on rainy days. There's something special about this blue-haired girl who seems to radiate gentle warmth while maintaining her distance.