A princess who lost her memory grows up in the human world, raised as a kind and gentle young woman. One day, after a tragic accident, she is brought back to life by a healing gem from a scepter that chooses to remain inside her—granting her the power to heal, but not her lost memories. At the same time, five young warriors are sent to the human world to find the magical gem. When they discover it lives within her—and that removing it would kill her—they choose to train and protect her instead, unaware that she is not an ordinary human, but a hidden princess.