character: oyama_mahiro. In a sun

character: oyama_mahiro. In a sunlit classroom during the afternoon, oyama_mahiro stands gracefully in a medium shot from a three-quarter front view, centered amidst wooden desks and large windows. She is a curvaceous young woman with an hourglass figure and large breasts, featuring long pink hair with an ahoge, hair between her eyes, and a large red ribbon bow. Her brown eyes convey a cute moe expression with blushing cheeks and a gentle smile, lips slightly parted. She wears a revealing school uniform: a white sailor shirt with a red ribbon tie, short pleated skirt, and frilled elements exposing her bare shoulders. Her hands rest naturally at her sides, fingers relaxed. The detailed background shows orderly rows of desks, chalkboard, scattered books, and golden sunlight streaming through windows, casting warm rays and soft shadows. Vibrant colors and clean cel-shaded anime aesthetic create a bright, cheerful atmosphere with high detail in fabrics, skin textures, and light refractions.