2girls =_= aged_down black_hair brown_hair child commentary_request crayon female_child forehead hair_bobbles hair_ornament high_ponytail hirasawa_yui hug k-on! kindergarten_uniform long_hair multiple_girls nakano_azusa ronti sakuragaoka_high_school_uniform school_uniform short_hair skirt sweater_vest take_it_home time_paradox twintails