Black Iron Magician - Chapter 9: Castle Town Diana

With a marriage contract forcefully done, he married her, and all she could do was comply, and resent him deeply for that and for all the following misunderstandings they faced.
However, it was already too late when she understood she actually loved him.

She was originally an assassin. After rebirth, she was reduced to another world’s Di family’s most inferior concubine-born daughter. With an extremely hideous appearance and no way to cultivate, she was the object of everyone’s humiliation and bullying.

However, the timid idiot turned over a new leaf. She took control of her own fate and became a domineering, fierce, and demonically beautiful girl. She became a shocking talent and stunning figure in the world, returning blow for blow, blood for blood. With a kill, she became famous!

Even for the smallest provocation, she will take revenge. If someone bullied her, she will return it tenfold! Even to the heavens she will not be merciful! Controlling the mythological beasts of the world, she broke through the Ninth Heaven and shook the whole world!

She freely opposed the heavens. Provoking numerous evildoers, Di Fuyao could only pretend that she was timid and easily bullied with a low IQ, pleading to be let off!

Who knew that the man she provoked, the cold and arrogant evil Ghost Emperor, actually brought the whole world to her just to marry her…

- Description from Novelupdates

This novel is also known as From The Start, I Traded A Galactic Warship

After getting a trading platform three thousand years later, everything in the world has become an antique, worth a thousand gold.

But it was also learned that three years later, aliens invaded, human beings fell, and the dark starry era began.

In this era of unprecedented change in tens of thousands of years.

Shen Shi decided.

First trade a space battleship, and then talk about it.

then–

Battleships come to the world from outer space! Global shock! Starry Sky Era, open in advance!

- Description from novelbuddy