Military Emperor's Red Makeup: the Noble Lady Living on Earth

She encountered the tragedy of annihilating her family and escaped after a strange encounter. She came from a backward world to a technological world. In order to take revenge, he defaulted to a girl-like identity and lived in her place. Learning skills, apprenticeships, learning mechas, and accidentally activating the secrets in the body. Unexpectedly, war broke out! The lover turned into the murderer's son and came to invade the earth! … Unexpectedly, things in the world are full of twists and turns! The murderer's son helped her conspire to kill his father and the entire family. What part went wrong?