animal_ears annoyed ass black_hair blush brown_eyes cat_ears cat_tail k-on! kneehighs kneeling long_hair looking_back nakano_azusa no_shoes open_mouth panties round_teeth school_uniform senji_(tegone_spike) simple_background skirt skirt_lift socks solo striped striped_panties sweatdrop tail teeth twintails underwear vest white_legwear