Sold to the Cold-Hearted King

The princesses went for hunting just to have fun outside the outskirt of their kingdom with no guards due to good and skilled they are during war or battle. They were all done having fun not until when they were surrounded by heavy and scary bandits. They were drugged and captured.
They got conscious of their environment, and later got to know they have been sold into slavery. Yet still suffering all in the name of their father's past life.