In the end Sun die along with her brother and father and the taurus king and his son that accompany him. (Im not sure but in my opinion everyone in the mountain die). The princess killed them and promised to avenged the beast men to their own beast kingS for turning blind eye about the slaughter happen of her kin. The prophecy about the divine power should not meet with the person who can see the past is pertaining to Sun should never meet the princess because it will bring her, her own death. I really regret reading the final chapter on lezhin.
This is messed up a big time.