The Strongest Interstellar Commander - Chapter 11: Counter Ambush.

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.

Qu Mao, who hadn’t had time to cut his sister out of class and experience the degenerate university life, woke up and found that he had come to a strange and cruel new world, and it seemed that young people from all over the world came to this world together…

The world channel was full of shouts and curses. Except for a tattered lord’s order, everyone didn’t even have a whiteboard novice weapon at the beginning…

But Qu Mao is not worried or in a hurry, because he has a cheating system with him, and he just wants to save some cheating points. With cheating points, he has everything.

Who would want to cheat if they could win by cheating?

- Description from novelbuddy

Third Miss Luo relies on her father’s power to create chaos everywhere and is notorious for bullying the weak. When she had nothing to do, she led a group of servants to the streets to flirt with beautiful and handsome boys. For Princess Qingyang, if this kind of person dared to behave wildly in front of her, she would just kill her with a single finger—until she opened her eyes again and found that she became Third Miss Luo, Luo Sheng.

- Description from Novelupdates