1girl, d, bikini, blush, breasts, chet, cleavage, grey_hair, idolmaster, idolmaster_shiny_colors, jewelry, large_breasts, long_hair, looking_at_viewer, medium_breasts, mermaid, monster_girl, monsterification, navel, necklace, open_mouth, pearl_necklace, purple_bikini, purple_eyes, smile, solo, swimsuit, yukoku_kiriko