I Created Scientific Magic - Chapter 11 - 9 White Phosphorus Fire and Spell Slots

When Ren Sheng is being hunted, in order to not fall into the hands of his enemies he decides to jump into the crack of space and time. Unexpectedly, he crossed into the future and was forced to substitute as a bride while he was still in a coma.

When he wakes up, he actually has a husband… Ren Sheng is extremely satisfied.

Such a delicious nourishment, this is his first time seeing it! Really want to root up ah ah ah!

As a result Lord Marshal, who was sick in bed, had a “little wife” who has been touching him all day and drooling over him.

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

The thousand-year-old Imperium is crumbling, and war looms on the horizon, bringing with it both brutalities and splendor. Caught in the midst of this chaos is Lansius, an office grunt and veteran MMO player who has been transformed into a medieval peasant. With no wealth, status, or magical abilities, and armed only with his basic knowledge of the art of war, can he endure and thrive in this realistic medieval fantasy realm?Follow Lansius as he moves from one occupation to another, striving to survive during these turbulent times.