GUMI - Mahoutsukai No Deshi / Sorcerer's Apprentice [ original song ]
Original Video: http://www.nicovideo.jp/watch/sm19692603
Kururingo / くるりんご userpage: http://www.nicovideo.jp/user/2377219
Kururingo / くるりんご pixiv: http://www.pixiv.net/member.php?id=635554
Kururingo / くるりんご homepage: http://kururingo.zouri.jp/