1girl, ass, bare_shoulders, bikini, fang, frilled_bikini, frills, green_bikini, green_eyes, green_hair, igarashi_futaba_(shiromanta), long_hair, looking_at_viewer, looking_back, medium_hair, ocean, petite, ponytail, senpai_ga_uzai_kouhai_no_hanashi, shiromanta, sidelocks, simple_background, smile, solo, swimsuit, water, white_background