1girl, bikini, breasts, cleavage, collarbone, frown, hair_bun, looking_at_viewer, medium_breasts, nios, pink_eyes, pink_hair, single_hair_bun, single_side_bun, solo, swimsuit, underboob, upper_body, white_bikini, yahari_ore_no_seishun_lovecome_wa_machigatteiru., yuigahama_yui