k-on!
nakano azusa
kuuchuu yousai
1girl, black hair, blouse, blush, bottomless, bow, bowtie, brown eyes, content rating, cover, cover page, doujin cover, electric guitar, guitar, instrument, long hair, looking at viewer, navel, no panties, open clothes, open mouth, open shirt, round teeth, sakuragaoka high school uniform, school uniform, shirt, smile, solo, teeth, twintails, unbuttoned, white shirt
highres, non-web source