milk (artist), milk (pixiv178138), pastel ink, moetan, bad id, bad pixiv id, 00s, 1girl, bdsm, blue eyes, blue hair, blush, bondage, bound, covered navel, crotch rope, crotch rub, cuffs, dutch angle, female focus, knotted rope, loli, matching hair/eyes, miruku, navel, one-piece swimsuit, one eye closed, rope walking, school swimsuit, solo, sweat, swimsuit, swimsuit costume, thighhighs, torment, white one-piece swimsuit, white school swimsuit, wink, wrists to ankles