4girls, ^_^, ball, beachball, bikini, black_bikini, blonde_hair, blue_eyes, blue_hair, blue_one-piece_swimsuit, blurry, blurry_background, blush, bocchi_the_rock!, breasts, brown_eyes, closed_eyes, cube_hair_ornament, gotoh_hitori, hair_between_eyes, hair_ornament, ijichi_nijika, kita_ikuyo, long_hair, looking_at_viewer, multiple_girls, one-piece_swimsuit, one_side_up, open_mouth, own_hands_together, pink_hair, red_hair, rouka_(akatyann), steepled_fingers, swimsuit, wet, white_bikini, yamada_ryo, yellow_eyes