Masterpiece, best quality, ultra-high-detailed, 1girl, 1boy, prone bone

masterpiece, best quality, ultra-high-detailed, 1girl, 1boy, prone bone, sex from behind, harukawa maki, long hair, bangs, brown hair, black hair, hair ornament, (red eyes:1.5), twintails, very long hair, hairclip, blunt bangs, mole under eye, low twintails, scrunchie, hair scrunchie, red scrunchie, shirt, thighhighs, long sleeves, bow, school uniform, serafuku, sailor collar, mole, bracelet, plaid, plaid skirt, red shirt, black sailor collar, red thighhighs,

(worst quality, low quality:1.4), watermark