2girls, armpits, bare_shoulders, beach, bikini, black_bikini, black_eyes, blonde_hair, blue_sky, blush, breasts, brown_hair, dark_skin, day, dutch_angle, girl_on_top, gradient_hair, idolmaster, idolmaster_shiny_colors, izumi_mei, long_hair, lying, multicolored_hair, multiple_girls, on_back, on_ground, outdoors, purple_eyes, saijo_juri, short_hair, sky, small_breasts, swimsuit, wet, white_bikini, yamato_cogane, yukadon