The Fierce Princess: Rejecting the Tyrant's Special Favor

She is a genius-level agent who failed in her first mission and traveled across time with a mysterious ancient book... She accidentally fell into the dragon bed and ruined the tyrant's good deeds. This princess is so deceptive! Tyrants are for torture, money is for spending, martial arts is for bullying the weak, beauty is for cheating children of candy, swords are for roasting frogs... This is the most ferocious princess in history!