Became a Demon with Pregnancy System - Chapter 7 - : I Mean You No Harm

After a cataclysmic event called The Great Calamity, strange rifts began opening all around the world, giving entrance to places we never saw before, full of monstrous beings.We call them Nests.The world, then, gave birth to people with special abilities. Powers that allowed them to fight the beasts inside the Nests.Those who chose to raid the Nests and fight for mankind were called Wielders, and little by little, society came to get used to the perspective that magic had become an innate part of their lives.My name is Kurt, and I was a regular, a person with no special abilities at all.I didn't awaken when I turned sixteen, when usually a person should awaken their powers.After being kicked from home and living years in the streets, I was caught in a trap engineered by my brother, so that my father, Octavius, could kill me.But I won't stay dead.I earned a system and went back in time.And they'll learn the true meaning of vengeance!

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Sam Sanderson is envied by many for his job, however he himself didn't seem to like it much.

Due to his expertise in nanotechnology he was tasked with monitoring the state the Valkyries, humanity's strongest weapons who all just happen to be made into gorgeous females.

Forbidden from even touching any of them, Sam spends his days in agony watching flowers he couldn't hope to touch. However one day all of that seemed to change.

The Northern Ice Fields had no boundaries.

The Winter Wolves hid within the snow, the Frost Tigers growled incessantly, and the roars of Giants echoed throughout the land. Many species struggled to survive in the icefield. At the same time, a baby White Dragon possessing the power of time broke out of its egg and opened its platinum-colored eyes.

Years later, the legendary Time Dragon appeared, moving freely between the endless past, present, and future.