The king of valdimar was cursed by Goddess for killing too many, that his body will gradually became a stone but a prophecy said that strongest will save him. He then announced to his heirs that the strongest to survive will be crowned king. Then the silent war of the heirs started killing each other for the throne.
MC was the 5th princess was killed on her 15th bday by poisoning by the 1st prince was also awakened her goddess's blessing powers. And turned back 5 years to the past.
So inorder not to be killed, she pretended to be crazy and was able to celebrate her 19th age.
She planned to run away after the people are focused on the sole surviving heir.
Then the delegation from the great emprire visits valdimir for surveillance.
The Princess Pretends to Be Crazy