The Contents of the destiny book

Synopsis:

Princess Cynthia Arlene de Vienna is the most beautiful girl in the Empire, but she has a bad character of being quick with emotions and doing evil things. Because of this, he was used by his younger brother during the seizure of the throne and eventually died by beheading after attempting to murder the empress and her baby.
But thanks to someone he can return to the past, he is also blessed by gods to be able to change the book of destiny.