* Long ago, there're two pony races rules over the Pony Land : Underground Ponies and Normal Ponies.
* Underground Ponies have ability to approach others' souls and attack them.
* One day, the Rulers of Pony Land thought the Underground Ponies are too dangerous, they're normal ponies' enemies.
* The war began.
* After a long battle, the Normal Ponies won. They sealed Underground Ponies to the Underground
* Mt. Hiamus, 201X
* Legends said those ponies who climbed that mountain wil never return
* A pony fell down the mountain.
* The adventure begin.