1girl, o, anastasia_(idolmaster), armpits, arms_up, blush, breasts, brown_pantyhose, casual_one-piece_swimsuit, cleavage, cleavage_cutout, clothing_cutout, covered_navel, earrings, grey_hair, groin, idolmaster, idolmaster_cinderella_girls, jewelry, large_breasts, looking_at_viewer, one-piece_swimsuit, pantyhose, short_hair, simple_background, solo, stud_earrings, swimsuit, tomajiyama, water_drop, white_background