The Mahou Sensei Negima OP Single - June - Happy☆Material CD was released in Japan on July 6, 2005 by KING RECORDS. This CD was released to go alongside with the TV series that aired the same year.
The CD features the anime's opening theme, Happy☆Material. This is the sixth and final release of six separate CD's, each performed by a set of the series' voice actresses. Aside from the singers, each CD offered a different version of the song itself and would release monthly between the months of January and June.
All songs were performed by the voice actresses Naomi Inoue, Junko Minagawa, Yuka Inokuchi, Mai Yazawa, and Mamiko Noto the voices of Satsuki Yotsuba, Ayaka Yukihiro, Zazie Rainyday, Natsumi Murakami, and Nodoka Miyazaki respectively.
This CD also includes the failed-version Ayaka Yukihiro Pactio Card.