1girl black_hairband blue_eyes blush breasts can closed_mouth competition_swimsuit coro_fae covered_navel dot_nose expressionless fingernails frilled_hairband frills grey_hair hair_between_eyes hairband hand_up highres holding holding_can kaguya-sama_wa_kokurasetai_~tensai-tachi_no_renai_zunousen~ long_hair looking_at_viewer medium_breasts one-piece_swimsuit paid_reward_available shirogane_kei simple_background soda_can solo standing striped striped_hairband sweatdrop swimsuit thighs wet wet_clothes wet_swimsuit white_background white_one-piece_swimsuit