1girl, bad_pixiv_id, bikini, bikini_skirt, bow, bow_bikini, braid, breasts, choker, cross-laced_armwear, detached_sleeves, flower, gradient_sleeves, hair_flower, hair_ornament, hair_tucking, liri_(liri_guilty), long_hair, looking_at_viewer, love_live!, love_live!_sunshine!!, medium_breasts, navel, night, open_mouth, parted_lips, pink_bikini, pink_flower, pink_rose, pool, red_hair, rose, sakurauchi_riko, see-through, see-through_skirt, short_sleeves, single_bang, skirt, sky, solo, star_(sky), starry_sky, swimsuit, twilight, waist_bow, white_bow, yellow_eyes