1girl, ass, bikini, brown_hair, cowboy_shot, from_behind, hair_tie_in_mouth, little_busters!, long_hair, looking_at_viewer, looking_back, mouth_hold, natsume_rin, ponytail, red_eyes, scrunchie, shirt, side-tie_bikini_bottom, solo, striped, striped_bikini, swimsuit, unworn_bikini_top, water, white_shirt, zen_(kamuro)