Hatsune Miku feat. IOSYS - Cirno's Advanced Math Class 【Mash-Up with Cirno's Perfect Math Class】

Mash-up between the IOSYS flash and the vocaloid song.マッシュアップイオシスフラッシュやボーカロイドの曲の間に。High quality: http://www.youtube.com/watch?v=xEb3jmugWuM