Double Life. From Light to Darkness

Behind me is a castle, a father, a personal maid, and the first lady-in-waiting in the kingdom. At the head of an army, I am traveling north through snowy lands to restore peace and tranquility in the rebellious duchy and... seat the rightful ruler on the throne.
Somewhere ahead awaits the Scarlet Fortress, belonging to the Firalsk Commendatory, and knowledge that can shed light on the powers granted to me. Somewhere ahead, rebellious barons are ready to pit two brothers against each other for their own selfish interests. Somewhere ahead looms war… A prophecy weighs heavily upon me, and the days of my freedom remaining until the arrival of the conqueror Ariman in the capital are numbered.
The crown of the princess is heavy, the sword of the defender of faith thirsts for blood, and dreams are sometimes more dangerous than reality. How to walk this path to the end and return without losing myself? I still have to find the answer to this question…