MTL - Doraemon: My Nobita! Join Chat Group - Chapter 378

The little doctor traveled back to 1981 and became a health school student at the beginning. After graduation, he was assigned to be raped by others.

It seemed that his future was bleak. But with his superb medical skills, firm personality, and golden finger benefits, let’s see how Chen Qi went from a doctor in a township hospital to a domestic medical leader, an internationally renowned surgical expert, and finally he and his wife The story of becoming “one double academician”.

- Description from novelbuddy

In a certain world, there was someone who excelled in magic combat, people called him 『Sage』. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combat』. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.

My talent can be said above average but for my family I am useless. Six years after the incident that I caused I accidentally created a system.Now I wonder if I will fail again....with my new power I will make sure my cute little older brother, sister and especially my Father will pay the price of creating a monster.... Me

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.