I'm Not the Heroine - Chapter 41

Gu Xingshen! Your sister grabbed my man, you helped your sister grab my man! Your family is not anything good!

[ DING ][ Common Sense Hijack System Activated ]----That notification was the start of a whole new life for Karl. He who just used to be working at a convenience store and always getting annoying complaints from customers and some shady words from his manager. Become a totally free man who can flip common sense upside down!******

From the moment they set foot on the colony spacecraft, 10 million volunteers started a new journey.
This book is about farming in the early stage, and fighting for hegemony in the middle and later stages.
Guan Gong fights Qin Qiong, and Chitu wants to turn into a dragon. As an online game for hegemony, famous officials and generals in Chinese history are indispensable.
In addition, some non-human intelligent races left over from prehistory are active in this era that belongs only to human beings, adding luster to the new glory.
Everything starts from the island, let us follow the footsteps of the protagonist, keep moving forward, and create a new great

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.