In a modern world, a professional assassin was murdered by her step sister, and found herself revive in an ancient world as a general's daughter with a weak physique. She was engaged to a prince, but because she did not have a nice appearance, her fiance and sister attempted to kill her. Although she had to struggle to survive, there were also those who unconditionally loved her that supported her in time of need.  How does she intend to adapt and survive in such a foreign and hostile