But for a Slime - Chapter 617 - 2.108.2 - Reading, Writing, and a bit of Rithmatic

An ordinary student accidentally traveled into an other universe and became the king of a small kingdom. He had gotten a “Cheating Code” of life and was able to complete something extraordinary. This is the story about a king that was able to conquer continents and leave behind him an ultimate legend that will be recited between every generation to come.

- Description from novelupdates

Chen Zhao can summon demons and see Death.

When a cold and crafty girl travels into the body of a foolish, man-crazy, young female aristocrat, what will happen?

If he wanted to boss around, he could do whatever he wanted. I would continue to farm, but if he tried to attack me, then he would not live to see another day.

Zhao Hai was a shut-in until he was transmigrated to another world with a farm and taken over the body of a fallen noble. The land that the noble had was one that could not grow anything. He also had a fiance who was the heir to a principality. To make matters even worse, he was talentless in martial arts and magic where he couldn’t even learn both.

“So what if I can’t do magic? I have my farm. Let’s see you try and attack me! I’ll let my bugs out to devour all of your military rations! I’ll put pesticides in your water source and grow weeds on your land! Let’s see you try and attack me after that!”

“What? You’ll hire assassins to kill me? Try and do that when I’m hiding inside my farmhouse. Once that is over, I’ll rid your country of all your food sources! Your citizens will come after you instead of you coming after me!”

The shut-in had a slightly foul personality. This is a story of how he, and his farm, became a nightmare to the people of a world of swords and magic.