1girl, 8n0_g, ahoge, bikini, blue_sky, blush, braid, breasts, brown_hair, cleavage, collarbone, day, flower, frilled_bikini, frills, green_eyes, hair_between_eyes, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, large_breasts, looking_at_viewer, navel, ocean, open_mouth, rainbow_gradient, sakuramori_kaori, short_hair, sky, smile, solo, splashing, swimsuit, water, water_drop