1girl, bikini, blush, fang, green_eyes, green_hair, hairband, igarashi_futaba_(shiromanta), looking_at_viewer, medium_hair, navel, off-shoulder_bikini, off_shoulder, petite, ponytail, senpai_ga_uzai_kouhai_no_hanashi, shiromanta, side_ponytail, sidelocks, solo, straddling, swimsuit