1girl, bad_pixiv_id, beach, bikini, bikini_skirt, blush, breasts, breasts_apart, brown_hair, hair_behind_ear, half_updo, kaguya-sama_wa_kokurasetai_~tensai-tachi_no_renai_zunousen~, leaning_forward, looking_at_viewer, nitogebeto, parted_bangs, red_bikini, red_eyes, red_skirt, shinomiya_kaguya, sitting, skirt, small_breasts, smile, solo, sparkle, swimsuit, water