In This Life, The Greatest Star In The Universe - Chapter 20:

Shao Di Yu, an orphan, is adopted as a result of of a murder case involving the deaths of his entire family. Because of some painful experiences, he refuses to speak. However, he has sharp insight; moreover, he becomes under the care of a pair of twin brothers in the police force, who also have a child currently in university. Yu Yin possesses yin-yang eyes, which allow him to see things ordinary people cannot. The two brothers happen to complement each other, and together they investigate various inconceivable incidents.

This is the story of a crazy lich who possesses an internal game system and brings catastrophe to the entire world.

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.