The Daughter of a General and an Emperor: Seeking Power in the World

She was originally an orphan, but she grew up in the royal family... She could have ignored it, but instead she killed someone in the street... She is a thorn in the family's side, but they can only let her go... She was exiled to the frontier because she committed murder as much as the common people. A few years later, she led the troops back to the imperial city. She was still the surly royal darling. What could the family do to her this time...