1girl, ahoge, arms_up, bikini, black_hair, blue_eyes, blue_sky, blush, breasts, cloud, day, long_hair, looking_at_viewer, shou937, sidelocks, sky, small_breasts, solo, swimsuit, upper_body, yahari_ore_no_seishun_lovecome_wa_machigatteiru., yukinoshita_yukino