2girls, beach, bikini, black_hair, blurry, blurry_background, brown_eyes, brown_hair, closed_eyes, day, eyewear_on_head, fangs, food, fukumaru_koito, hair_bun, hair_down, hinatsukimomo, ichikawa_hinana, idolmaster, idolmaster_shiny_colors, jewelry, looking_at_viewer, multiple_girls, navel, necklace, ocean, open_mouth, outdoors, popsicle, single_hair_bun, skin_fangs, swimsuit