Humanity's Intelligence Has Regressed, but I Was Spared!

Quan Ren had just graduated with his doctorate when he accidentally transmigrated to a parallel-world version of Longguo. Here, not only were the customs and habits exactly the same as in his old world, but every little detail was identical too.

There was just one difference: the people here were all very unintelligent.

A high schooler who could add three-digit numbers was considered a genius, and the nation's top think tank was only at the level of graduate students!?

Here, a bad cold could be fatal, and culture had failed to endure...

At that moment, Quan Ren, who had studied everything from medicine, physics, biology, and chemistry to countless other fields, suddenly realized that he had become the smartest person in the world!

"Holy crap, he can do three-digit multiplication in his head!?"

"What!? They've even cured pulmonary Y!?"

"No way, light is both a wave and a particle!? How can anything in this world have two forms!?"

"Good heavens, how does Quan Ren know everything, and why is he the best in the world at all of it!?"

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.