Under the Oak Tree (Web Novel KR) - Chapter 217

A strange event happened in Blue Star, a large number of Blue Star people were affected by a mysterious force, and their souls temporarily traveled to another world.

It’s a dark, weird world

Not only are the prices extremely high, but there are also many evil spirits quietly appearing. At the same time, various forces are fighting with each other, and the people of the lower classes are suffering.

Yang Fangben, the attending physician of the mental hospital, also traveled through a strange incident.

Fortunately, he found that he had awakened a proficiency panel.

As long as you keep refreshing your proficiency, you can improve your own realm.

He grew up secretly, with corpses piled up under his feet, and he unknowingly embarked on a path of sagehood.

- Description from novelbuddy

This is the reupload (at his request) of the chapters previously posted by craftyprogamer as he wants to focus on his own book

Yi Zaha. The crazy demon crazy for martial arts. While he was running away after stealing the heavenly pearl of the Demon Cult Leader, he fell off a cliff. After thinking that everything was over, he opened his eyes to see that he had returned back to when he was a waiter… And he is being beat up for something that he didn’t do. The crazy demon who returned to the beginning of his days as a waiter! Will he go crazy again, or will he drive his enemies crazy?

“There is no greater sorrow than to recall happiness in times of misery.” — Dante AlighieriThis is a quote that dictates my life perfectly. Ever since I was a young boy, I enjoyed playing games, so much so that I carried that passion even into my sophomore years, all the way to my death.My story in life isn't all that tragic compared to the more unfortunate out there. I am your typical game creator. I made indie games and visual novels for a living.Naturally, being out of passion and an unknown solo developer, I tried my best to get my work out there, working additional jobs, doing side hustles, both online and locally, all just to survive, and all just to sponsor my work.However, in a world where competition is vast in the game industry, everything I make only ends up at the bottom rank. Because of this, I never gave up, but as I went into my thirties, this passion of mine separated me from my family.These days they don't even talk to me anymore. Depressed, alone, and on the verge of a mental breakdown, I lost all hope, and it didn't help that I had two months of rent due and bills that needed to be paid.But all that changed one night when I got a mysterious message that suddenly appeared on my laptop screen:“You who despair! Would you like a second chance at life? If yes click and offer up your life worth's negativity to me, if no forget this message completely!?”At that time, I clicked Yes by accident.But as the message said, I died due to a heart attack and reincarnated into the World of Purgatory. This was the greatest mistake of my life, as it changed it forever. However in this world I came with the power called the Administrator — a power I gained as a newborn Negative Spirit.With this power I exist as an Entity of Dreams, but even without a physical body, I was determined to make my wish come true: to be a game creator. But unlike other devs, my dreams are different. I can create scenarios in the dreams of men, forcing them to play my game. If they win, they walk out of here as an Awakened Spirit Warrior; however, if I win, the abilities they would have gained in my trials go to me. In this game of mine, anything could be wagered. In reality I have nothing to lose as the Administrator. But to the players, what they wager could be a matter of life or death.