2girls, ahoge, air_bubble, bikini, black_choker, black_gloves, black_hair, blue_eyes, blue_ribbon, bracelet, breasts, bubble, casual_one-piece_swimsuit, chibi, choker, gloves, goggles, hair_ornament, in_bubble, jewelry, large_breasts, madoka_sarashina, multiple_girls, navel, one-piece_swimsuit, pixiv_fantasia, pixiv_fantasia_scepter_of_zeraldia, ribbon, rudyx_alectris, school_swimsuit, swim_goggles, swimsuit, tsukinami_kousuke, underwater