funabori nariaki, do s na onee-san wa suki desuka?, character request, game asset, visual novel cg, 1boy, 1girl, age difference, animal collar, armpits, arms up, basketweave, bdsm, bed, blush, bondage, bound, bound wrists, breasts, censored, collar, curtains, dutch angle, erection, faceless, faceless male, femdom, from above, half updo, indoors, large breasts, looking at another, lying, medium breasts, mosaic censoring, nail polish, nipples, nude, on back, on bed, on side, penis, pillow, red collar, school infirmary, shiny skin, short hair, smile