1girl, alternate_costume, armpits, arms_up, bikini, blonde_hair, blush, breasts, brown_hair, c_(theta), cleavage, dark-skinned_female, dark_skin, day, from_below, gem, gradient_hair, grin, halterneck, heart_o-ring, heart_ring_bottom, highleg, highleg_bikini, idolmaster, idolmaster_shiny_colors, izumi_mei, large_breasts, looking_at_viewer, micro_bikini, multicolored_bikini, multicolored_clothes, multicolored_hair, navel, o-ring, outdoors, purple_bikini, sideboob, skindentation, smile, solo, stomach, swimsuit, twintails, underboob, wading