1girl, beach, bikini, blue_bikini, blue_hair, blue_sky, breasts, cleavage, crab, dark_blue_hair, day, holding, holding_innertube, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, innertube, jewelry, kwaejina, large_breasts, looking_at_viewer, navel, necklace, open_mouth, outdoors, short_hair, sky, solo, swimsuit, toyokawa_fuka, wavy_hair