Maoyuu Maou Yuusha - Volume 1 Chapter 5, “Pick One of the Two Routes”

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

Only I know the end of this world.

One day our MC finds himself stuck in the world of his favorite webnovel. What does he do to survive? It is a world struck by catastrophe and danger all around.

His edge? He knows the plot of the story to end. Because he was the sole reader that stuck with it. Read his story to see how he survives!

Might is truth!

Iron-blooded Prime Minister Bismarck once said: “To solve major contemporary problems, we cannot rely on speeches and parliamentary resolutions… we must rely on iron and blood.”

Qin Tian, ​​a military enthusiast, was reborn as the fifth son of William II, Prince Oscar . Originally, he just wanted to eat and wait to die, but by accident, he became the heir to the empire.

For his own life, Qin Tian had to do everything possible to let Germany win the war!

Qin Tian’s goal: “Use the German sword to obtain land for the German plow, obtain daily bread for the German people, and fight for the land under the sun for the German nation!”

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.