1girl, 2009, aiuti, alternate_costume, animal_ears, black_leotard, black_pantyhose, blue_ribbon, breasts, brown_eyes, brown_hair, copyright_name, detached_collar, electric_guitar, gibson_les_paul, guitar, hair_between_eyes, hair_ornament, hairclip, hirasawa_yui, instrument, k-on!, leotard, neck_ribbon, pantyhose, playboy_bunny, plectrum, rabbit_ears, ribbon, short_hair, simple_background, small_breasts, solo, strapless, strapless_leotard, twitter_username, upper_body, white_background, wrist_cuffs