The Great Mage Returns After 4000 Years (Web Novel KR) - Vol 2 Chapter 472

Every human on Earth was transformed into a summoned monster and was summoned to another world.

What the heck? She, a famous doctor from the 23rd century, turned into a village peasant girl of a different world!

An invasion like no other.
Dragons destroying everything in sight.
A new world rising from the ashes.

Blake lived through it all before he died, but now he was back, back to the time before things had ever happened.

A strange place with a strange girl....

Blake had no idea how it happened, but he suddenly had one of the enemies of mankind, a dragon girl, as his girlfriend.

--Extra Info--
Yuri tag is for his wives. Everyone in the harem will love each other.

Extra tag: NO NTR

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Introduction 1:

Isaac has read a certain philosophy, studied a certain selection, watched Hou Hei, and even got into the life sciences where he was embarrassed to find a job without a doctorate!

He felt that he was a literate and thoughtful dragon!

Introduction 2:

Only by having your own thoughts can you give birth to your own divinity!

Those who can become gods are all great philosophers!

When Dr. Green Dragon discovered this essence, he began to rebuild his own scientific philosophy system outside the “good and evil” “camp”.

Will the gods go away because of this?

Is a new era coming?

- Description from novelbuddy