MTL - The Apocalyptic Master of Synthesis - Chapter 513 Scourge Empire (subscription required)

The eternal night is coming, and the killing ground descends.Gods fall, and a hundred ghosts parade at night.You can stand in the forefront and announce the arrival of the era's tide to the world, or you can hide in the darkness and coldly observe the struggle of others to survive.Liberate your thoughts, embrace your destiny, this is the absolute real game, this is, Earth's Killing Field.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

Being a doctor is hard. You need to go through four years of college and four years of phd, costing eight good years of your life and a giant amount of money, but still become a normal people. What else can you do? Well, someone has an answer. With a little luck, one can easily become the peerless divine doctor better than anyone in the city!

Mu Yangling was reborn in the family of Orion. He thought he could live a simple and happy life. Who would have thought that a military disaster had nearly destroyed their family. His father was classified as a military household, and their family accompanied them to farm the fields.

Unfortunately, they could not even tell the seedlings of grains. Qing, looking at his mother and younger brother who were about to cry without tears, Mu Yangling raised his chest and said, “It’s okay, I have the strength” and some agricultural theoretical knowledge from a thousand years later.

- Description from novelbuddy