The Magician's Academy

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 Tanarotte, who happens to hold enough magical power to destroy his country, but fortunately Tanarotte professes undying loyalty to her "creator."

The universe separated in three worlds: Heaven, Human World (Earth), and the Demon realm. The Gods and Demons are not seen fighting among themselves in the human world and try to keep their existence a secret from them. The human world is only source of entertainment and enlightenment to both the demons and the gods to the point of smuggling human goods to both realms.