1girl, black_hair, blue_one-piece_swimsuit, breasts, competition_swimsuit, cowboy_shot, diving_mask, diving_mask_on_head, goggles, goggles_on_head, green_eyes, hair_bun, hamaguchi_ayame, idashige_(walkietalkie), idolmaster, idolmaster_cinderella_girls, looking_at_viewer, one-piece_swimsuit, partially_underwater_shot, pool_ladder, sidelocks, small_breasts, solo, swimsuit