Magician's Academy!

Plot
Magician's Academy revolves around Takuto Hasegawa, who attends a magic academy that is not marked on any map. During a summoning spell exam, he accidentally creates a girl named Tanarot, who happens to hold enough magical power to destroy his country, but fortunately Tanarot professes undying loyalty to her "creator."

Official

 * Macademi Wasshoi! Game Japanese

Other Sources

 * Magician's Academy
 * Macademi Wasshoi Anime on AnimeNewsNetwork
 * Macademi Wasshoi Manga on AnimeNewsNetwork