Maou-sama no Machizukuri! ~Saikyou no Danjon wa Kindai Toshi~ - Volume 4 epilogue

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

“My name is Yang Jian, when you are reading this, I am already dead.”A mysterious sheepskin scroll, an eye that peers into darkness, this is the tale of a survivor

This is the story of a man who grew up with everything—money, love, family, status—but in isolation for being unique, abnormal... an anomaly.He finally gets a chance to show his skills, his talents, his potential to the world.On that fateful day, during his Awakening ceremony, not only did he awaken his abnormally strong innate ability, but he also found out he was being rewarded, loved, favored by the system.This is the story of a man who is undefeated by anyone and anything, a man who grew powerful beyond imagination, a man who rose to power on his own.This is the story of a man who turned many worlds upside down, stopped many wars, won many battles, dethroned kings, and became kings of many.This is the story of a man who represents both balance and imbalance, holy and unholy, good and bad, light and dark, pure and impure, positive and negative, order and chaos.It all started when the system started favoring him.Watch Sam grow from an ordinary noble to the most powerful entity in the entire universe while he finds many buried secrets about his origins, about the system that governs every being in the universe, and why he is being favored by the very system.There was none like him, and there never will be.