nitta kenji, kazoku no kizuna, selen (company), game cg, 1boy, 1girl, ankles tied together, barefoot, bdsm, bed, blindfold, blue hair, bondage, bound, bound ankles, bound legs, bound wrists, breasts, clenched teeth, completely nude, feet, female focus, grabbing another's ass, grabbing from behind, groping, hair ornament, hair ribbon, indoors, legs tied together, long hair, nipples, nude, on bed, ponytail, ribbon, rope, shibari, teeth, toes, top-down bottom-up, wax, wax on body, wrists tied together