oota kazunori, kodama hikaru, mink (company), yakin byoutou, white legwear, game cg, jpeg artifacts, 00s, 1boy, 3girls, :d, ^ ^, age difference, apron, aqua eyes, ass, bdsm, blonde hair, blush, blush stickers, bondage, bound, bow, breasts, brown hair, buttons, ceiling, class, clenched hands, closed eyes, crotch rope, curtains, exhibitionism, fence, grass, green hair, hair bobbles, hair ornament, hair ribbon, happy, holding hands, indoors, instrument, kneehighs, leaf, leg lift, long sleeves, looking at viewer, looking back, loose socks, miniskirt, multiple girls, naked apron, nude, open mouth, pajamas, piano, pink apron, pink bow, pink hair, pleated skirt, profile, public indecency, red hair, ribbon, rope, sandals, sex ed, sheet music, shibari, short hair, short twintails, sideboob, skirt, sleeve cuffs, small breasts, smile, socks, solo focus, standing, standing on one leg, teacher, tile floor, tiles, twintails, window, wing collar