1girl, ahoge, ass, ass_focus, bikini, black_hair, blue_eyes, cowboy_shot, from_behind, halterneck, konoyan, leaning_forward, long_hair, looking_at_viewer, looking_back, side-tie_bikini_bottom, solo, string_bikini, swimsuit, white_bikini, yahari_ore_no_seishun_lovecome_wa_machigatteiru., yukinoshita_yukino