Special Agent's Rebirth: The Almighty Goddess of Quick Transmigration - Chapter 154

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

After her parents had both died in an accident, she had to sign an agreement with him to save her family's company.

It was stated in the agreement that he would save her company on the condition that she would allow him to do whatever he wanted with her.

Just because she resembled the woman he had once loved, he had toyed with her a million times and tortured her in every possible way.

He humiliated her in front of others and then abandoned her. She had loved him, but had suffered.

It wasn't until the agreement expires that she finally ran away from him. By the time she left, she was already pregnant.

A few years later, she brought her adorable child back and became strong and cold-blooded. When they met again, he doted on her so much …

This stands at the forefront of strategy guides to Life (a shitty video game)!

Julian Weber is an officer in the U.S. Army Corps of Engineers and a graduate of Westpoint Military Academy with a degree in civil engineering. As U.S. involvement in Afghanistan comes to an end, Lt. Julian Weber finds himself involved in a terrorist attack by the Taliban, which claims his life.

However, he quickly finds out that death is not always final as he is reincarnated into the body of a Baron’s son and heir in an alternate Earth set in Late-Medieval Europe. In an era of political turmoil and civil strife, the Baron’s young son is named Regent of the Barony of Kufstein and forced to contend with feudal powers. Will he be able to institute reforms leading his Barony into the age of industry?

Or will he succumb to the pressure of his feudal overlords and a corrupt church that seek dominion overall?