True and False Daughter

Are there people in the world who look exactly the same? Dolly had always scoffed at this, until she accidentally saved an eldest lady who was almost hit by a carriage on the street. Domina Kate Leolavos, the youngest daughter of the Marquis of Olumu, is a quiet and elegant aristocratic lady who can't bear to trample an ant to death. After taking off her makeup, Dolly stood with her, as if she were looking in the mirror, more like a biological sister than a biological sister. It's just that except for this face, the noble daughter who is about to succeed the Marquis and the knife-throwing clown of the circus have nothing else in common, and there is no other intersection in life... However, on the seventh day when the two met, a fire broke out in the slum that no one cared about, causing one death and one injury. A circus extra died in a dilapidated rental house, but the aristocratic daughter survived by chance. ***+ As the second son of the Duke of Sedley and the nephew of His Majesty the King, Xeno was handsome, wealthy and powerful, and his life was smooth sailing without any troubles. Smooth sailing = boring as hell For Xeno, boredom is more deadly than poison. At this moment, he met a little liar who was full of loopholes. Her deception was so low-level that she showed her little tail without much testing. In order to make the boring life more interesting, Xie Nuo decided to help her cover it up. After all, the fun stuff is most interesting when it's revealed at the end, right? 1.+ I will put it here first, and try reading it in "Good Stranger" (outdated, probably need to be rewritten) 2. It won't be long. With a little suspense plot added, it will probably be a short story of just over 100,000 words. Intention: to be a good person