The replica of Earth, called Gaia, the world that had no internet or phones or anything like in 2021 to the future but instead nature, aristocrats and history really matters. Wars that are normal for everyone and lands that owned by many Rulers. There are many famous academies but the most famous one is called the "Ever High Magic Academy" or "School of Magic Arts", and a lot of commoners or royals study there to practice magic to become future heroes, protecting their world from danger.