Era of Players: Death God - Chapter 198: A Demon

He became Arthur. He lived his life as Arthur and claimed Excalibur.Now, he has returned with a purpose.Beneath the surface of the world lies a twisted world known as the veil—an dimension where monsters are born from corrupted human emotions and desire. The deeper you go, the more terrifying they become.Each Layer is sealed. Each hides a god-like being, waiting to rise to the surface.Now, Sylas bears the responsibility of keeping the gate between both worlds from breaking.[Keys are passed down through generations.No one knows where they came from, but those keys can open doors to another world — a world filled with deadly trials. If you complete the trial, you return with blessings from gods, mythical beasts, and ancient warriors. The amount of blessings you earn depends on how well you perform.But if you fail, the door shatters… and you are gone forever.If you survive, you are given a permanent rank — a rank that decides your place in society for the rest of your life.]

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

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates