It turns out that my Yandere playmate online is my Homeroom Teacher - Chapter 22: Walk in the park with my aunt

The Adrasia empire on the Vogel continent. There is a battle over the throne of such an empire that possesses powerful military and vast territory.With the successor undecided, the children of the emperor are vying to expand their power. However, there was one prince that everyone says will definitely not become the emperor.The seventh prince, Arnold Lakes Adler. The young man who was inferior to his younger twin brother in every way, the dull prince.Incompetent and lethargic, Arnold wastes everyday just playing around. However, behind the scenes, he is one of the only five SS-Class adventurers called ‘Silver’.Seeing the intensifying battle for the throne he decided “I don’t want to die so let’s have my little brother become the emperor…”This is the tale of absurd secret manoeuvres of the prince who is uninterested in the title of the emperor.

Xin Xiu exclaimed, “Master is a panda!”

“This clover, you can get Xingyuan grass after advanced, which has the effect of gathering spiritual energy.”

“Why is Chinese cabbage so similar to the white jade flower in my memory? Try it out.”

“Is this sunflower the original form of the World Swallowing Flower?!”

“The more I look at this apple, the more similar it is to the Zhu Guo in my memory. Don’t worry, let’s try it out.”

When the spiritual qi recovered, when everyone in the world was practicing martial arts and beating to death for a little cultivation resource, Lin Yi started the road of farming based on the broken memory inheritance in his mind.

- Description from novelbuddy

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