Priscilla Gibson inherits two things from her grandfather: an old mansion and an odd-looking, golden key engraved with moons. Unbeknownst to her, the key opens the door to a kingdom from another dimension and time. In fact, the entire kingdom already knows her and expects her to follow the footsteps of her grandfather. Together with her new found allies, Priscilla goes on an adventure defending the kingdom from surrounding enemies while searching for the cure to the mysterious curse the whole kingdom suffers every 21st day of the month.