rona, akizuki ritsuko, kisaragi chihaya, miura azusa, idolmaster, idolmaster (classic), idolmaster 1, hand on shoulder, 00s, 3girls, :d, ;d, ahoge, alternate costume, alternate hairstyle, antenna hair, bare arms, bare legs, bare shoulders, bikini, black eyes, blue bikini, blue hair, blush, breast press, breasts, brown eyes, brown hair, clenched teeth, cowboy shot, female focus, flat chest, girl sandwich, gradient background, green bikini, grey eyes, happy, headband, large breasts, legs, long hair, looking at another, looking at breasts, matching hair/eyes, medium breasts, midriff, multiple girls, navel, neck, no eyewear, o-ring, o-ring bikini, o-ring bottom, one eye closed, open mouth, ponytail, red eyes, sandwiched, sarong, smile, standing, striped clothes, striped sarong, sweat, swimsuit, teeth, visor cap, white bikini, wince, wink, yuri