The Negima!? Sound Collection ~Cantus I~ was released in Japan on February 7, 2007 by KING RECORDS. This CD was released to go alongside with Shaft's TV anime series, Negima!?
The CD is the first release of two that features songs of the soundtrack to the Negima!? TV anime series.
Also included is the Ako Izumi Suka/Dud Neo Pactio Card.