King Eternal Monarch: The Alternate Reality

A king who needs to rule a palace. Betrayal. Revenge. Jealously. Love. A tragedy happened during the coronation night. The King and the Queen thought that its ok to not guard the palace at its fullest but their wrong.. If they can only bring back time. No one will die. The war starts. The battle begins. Many died but fate has its own way. Parallel universe. Same faces . Time stops. How can King Caspyan protect the palace at the same time travel to different universe? Is it a battle between war or love? A battle between the past and present? Or a battle between a mere human and the King? (inspired thru a korean fantasy movie The King Eternal Monarch featuring Lee Min Ho)