1girl, ass, bikini, black_hair, blue_eyes, breasts, collarbone, halterneck, long_hair, looking_at_viewer, ponytail, shou937, sidelocks, simple_background, sitting, small_breasts, solo, string_bikini, swimsuit, white_background, white_bikini, yahari_ore_no_seishun_lovecome_wa_machigatteiru., yukinoshita_yukino