4girls, bad_twitter_id, ball, beachball, bikini, blue_eyes, blush, bocchi_the_rock!, breasts, breasts_apart, collarbone, cowboy_shot, cube_hair_ornament, gotoh_hitori, groin, hair_between_eyes, hair_ornament, holding, holding_ball, holding_beachball, ijichi_nijika, kita_ikuyo, looking_at_viewer, medium_breasts, multiple_girls, open_mouth, pink_hair, rouka_(akatyann), selfie_stick, solo_focus, standing, swimsuit, wading, water, wet, white_bikini, yamada_ryo