!? 3girls agoshi_sakina ahoge all_fours arms_behind_back bangs black_hair black_socks blonde_hair blush bound bound_ankles bound_wrists breasts buruma closed_eyes facing_another fish_hair_ornament full_body gag grey_hair gym_uniform hair_ornament improvised_gag kneehighs kokaki_mumose long_hair looking_at_another loose_socks lying medium_breasts messy_hair midriff multiple_girls no_eyewear null-meta on_ground on_side open_mouth outdoors ponytail puffy_short_sleeves puffy_sleeves red_buruma red_socks rope shadow shirt shoes short_hair short_sleeves smile sneakers socks souen_chiaki sweat tape tape_gag uozumi_kurumi v-shaped_eyebrows white_shirt yellow_eyes