Youngmin and Kwangmin are sons to the Sun God. After an event that occured at in the Sun God's domain, he sent the twin boys to earth for their safty. However, what happens when one of the twin's powers were sealed, what would come out if the only way to help him is a stone that is considered to be a myth? Will he be saved and his true power will be returned to him, or will his heart give in to the power of darkness?