Millennium Oracle: Pawns of the Gods

He, a federal agent was involved in the mystery of gods and demons due to a mission She, the king's daughter, awakens long-lost abilities as her family dies. She is the princess of the kingdom, but she came to Sin City due to family changes. She is a daughter of a rich family. What will she do in the world while she is struggling with family ties and love? He is the king's younger brother. He was supposed to inherit the throne, but he didn't get his wish. They are the children of nobles, but they have taken different paths due to dust-laden secrets.