Reborn as Abandoned Princess of Another World

When the soul of a modern military girl who died by a gunshot reincarnated into the soul of young Cecilia the daughter of the Empress that was murdered by the Emperor's beloved consort.Cecilia was bullied often because she was naive while her father the Emperor goes on to handle Kingdom affairs. He knows nothing and sadly she wasn't the castle's favorite princess due to rumors even though she has her father's heart/favor. She will climb the ladder to become the heir by knocking her enemies down like dominos. The whole family of that consort will pay but what about that boy he doesn't belong to the consort. Anyways, make them fall like dominos! Now that the soul of a very vicious woman is in her, she'll make them all pay.