The Eldest Lady I Found Is a Real Princess!

[Traveling through the past and present + wearing clothes + the heroine has high martial arts value + cool writing without abuse + 1v1 + sweet pet] Xia Qingwen, the eldest princess of Daxia, has a beautiful appearance, both civil and military skills, and is loved by thousands of people. I got a mirror by chance, and unexpectedly saw another world in the mirror, and a girl who looked exactly like her... —— Xia Qinghan traveled through time, but she still wore it. Because of a transparent mirror, she traveled to a modern place she was unfamiliar with. Just as she was trying to find a way back, a man who claimed to be her brother said that she was his long-lost sister. Looking at the man who was somewhat similar to her brother in her own world, and thinking about her current situation, Xia Qingwen decided to go home with her cheap brother. Who knew that there was an adopted sister at home, and he didn't seem to welcome her? It's okay, just don't mess with her, otherwise she'll be beaten so hard that her parents won't recognize her! When she first came to this world, Xia Qingwen was planning to learn the knowledge of this world so that she could use it when she returned to Daxia Kingdom. However, as I continue to learn, things called "systems" appear one after another around me. Want to take away my luck? Do you even want to steal the luck of this world? Don't worry, let's see how she relies on her heart and cooperates with the country's father to catch them all.