K-ON! by Horiguchi Yukiko #346354
Mangaka: Horiguchi Yukiko, Uploaded by AC73 Nov 20, 2010,
Horiguchi Yukiko, Kyoto Animation, K-ON!, Hirasawa Yui, Akiyama Mio, Kotobuki Tsumugi, Tainaka Ritsu, Bass Guitar, Keyboard (Instrument), Bench, Official Art, CD (Source)