The Succubus Equestrian Pony Kingdom went on a brink of collapse, betrayed by the armies of Vampires, Werewolf Lycans, Kitsunes, Minotaurs, Gryphons, Zebras, Caribou, Changelings, Dragons, and the others. Preventing a possible extinction, the Council has chosen some of the Succubi members including the Princesses to safety as the Light and Dark Mage transport the members somewhere more hidden and promising to protect them. 1500 years have passed after they teleport to safety, the remaining Succubi began to rebuild their Kingdom. That is until they were discovered by some human agents, but they offer an exchange program plan and repopulate solution. Since then, a graduate boy is relocated to another place, where he has to deal with a lot of sexy Succubi living in his new home and a private Kingdom Academy.

Note for extra tags; Death, adventure, crossover, and possible harem/herd cause why not.