akizuki_ritsuko antenna_hair bare_shoulders bikini blush breasts brown_eyes brown_hair clipboard dutch_angle flower folded_ponytail front-tie_top glasses groin hair_flower hair_ornament hibiscus hinata_mutsuki hood hoodie idolmaster idolmaster_(classic) medium_breasts navel o-ring o-ring_bottom o-ring_top one_eye_closed open_clothes open_shirt shirt sideboob sleeves_rolled_up smile solo swimsuit underboob