1girl, air_bubble, bare_back, bead_bracelet, beads, bikini, bikini_top_only, black_hair, blue_bikini, bracelet, breasts, bubble, green_eyes, hair_between_eyes, idolmaster, idolmaster_cinderella_girls, jewelry, long_hair, looking_at_viewer, looking_back, mermaid, monster_girl, monsterification, ocean, parted_lips, rinshi, scales, scrunchie, shibuya_rin, shoulder_blades, sideboob, sidelocks, sleeveless, solo, stomach, swimsuit, underwater, wrist_scrunchie