1girl, alternate_costume, ame_(uten_cancel), armpits, bare_shoulders, bikini, blonde_hair, blue_eyes, blush, breasts, closed_mouth, collarbone, day, hachimiya_meguru, hair_ornament, hairclip, idolmaster, idolmaster_shiny_colors, lips, long_hair, looking_at_viewer, lying, medium_breasts, navel, on_back, outdoors, shadow, shiny_clothes, shiny_skin, shore, sideboob, simple_background, smile, solo, stomach, swimsuit, underboob, water, wet