Later, He Became A Royal Healer - Chapter 45 - Third change.

TL Description: Eat The World Tree is about a strange guy, who happens to be extremely curious and unable to stop himself from acting on his curiosity. The MC makes a slight mistake and travels to another world, and must fulfill specific quest or face varying levels of consequences (normally death).

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

It started out, yeah. It was a crash landing.[Inner Lunatic] is a fantasy RPG infamous for its extreme difficulty.However, to Yoo Chan, who was diagnosed with a terminal illness at a young age, this game was his entire life and has now become his reality.From now on, Yoo Chan has to survive in this world as Nox von Reinharber, the worst villain in the first act of the game. Will he be able to reach the end of the story safely?[This novel does not belong to me; all rights belong to its author. I merely upload it, and translation credits go to: Dursty’sTS, Gozine.]Original Author: Jeong Melody/정선율

Mochizuki Touya, a 15-year-old boy, who got zapped by a flash of lightning due to a freak accident caused by God, wakes up and finds himself face-to-face with God.