himawari, watarabe keiichi, himawari (coropata), coropata, original, translated, 00s, 1boy, 1girl, age difference, aged down, backpack, bag, blue eyes, blue hair, blush, cleft of venus, clenched teeth, comic, dildo, glasses, hair ornament, loli, necktie, no panties, object insertion, ponytail, pussy, pussy juice, randoseru, school uniform, sex toy, short hair, short twintails, size difference, skirt, smile, sweat, teeth, text focus, twintails, upskirt, vaginal, vibrator