MTL - Super Invincible Battleship - Chapter 5 1st upgrade

The protagonist of the collapse of the three former civilizations is Dr. Mei. What is the end of logic, the strongest brain, super intelligence, this is the story of the strongest scientist of Honkai with knowledge of the moon becoming the god of science!

- Description from novelbuddy

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

In her previous life, she was humiliated and bullied every day. Her relatives despised her and her friends played tricks on her! Her mother and elder brother died one after another early. She gritted her teeth and survived the adversity alone, but only managed to live for twenty-six years!When she opens her eyes again, she finds herself back in time twenty years ago. To swallow insult and humiliation silently and let history repeat itself? If everything couldn't be changed, what was the point of her rebirth?! Who can stop her now that she defies her destiny and her abilities are emerging? In front of others, she is an ordinary student with an indifferent personality, isolated by her classmates. Behind their backs, she works step by step to build a brilliant and extraordinary business network.