1girl, bikini, blue_hair, breasts, idolmaster, idolmaster_cinderella_girls, large_breasts, multicolored_hair, navel, open_mouth, pink_eyes, pink_hair, short_hair, side-tie_bikini_bottom, simple_background, solo, swimsuit, tomajiyama, two-tone_hair, white_background, white_bikini, yumemi_riamu