In the year 2068 of the Earth Ephemeris, the resources of the Earth Star were exhausted, and all mankind set their sights on the starry sky, hoping to travel through time and space through the cross-era "artificial miniature wormhole" technology to find the "second Earth Star", but what everyone did not expect was that in the 13th test of the "artificial miniature wormhole", the starter exploded unexpectedly before flying out of the Earth's atmosphere...... Fortunately, this accidental explosion proved that the "artificial miniature wormhole" technology can indeed affect time and space, and unfortunately, before humans could set foot on Earth, alien creatures attacked along the portal created by humans!

The terrifying alien creatures, like viruses, are rapidly spreading and wreaking havoc in the "body" of the earth!

This year, the devil has descended! The human population has plummeted from 20 billion to 3 billion, and the year 2068 of the ephemeris is known as the first year of the Calamity.

In the war for survival with extraterrestrial creatures, the area of human security activities has been sharply reduced from 510 million square kilometers to 60 million square kilometers, and more than 200 countries have ceased to exist, and only 12 alliances in the world are left to sit on the earth and help each other.

In the year 91 of the Calamity, the "Tyre Defense Cover" was released! The technology was mainly developed by the Xia Alliance, the Amarek Alliance, and the Susha Alliance Research Department, which took 60 years and was finally successfully developed under the auspices of the famous physicist Thiel. The advent of the "Thiel Defense Shield" successfully prevented the invasion of alien creatures, and 12 huge bottomless "giant bowls" were overshadowed on the territory of the 12 Alliance, and the living space of human beings stopped shrinking, and human beings finally ushered in a respite.

Calamity 94 – In Calamity 190, humanity recuperates, rebuilds civilization, and begins an initial counterattack, with the Alliances trying to regain lost ground, but with the near-infinite number of alien creatures, they have gained little. Humanity has coexisted for nearly another hundred years in a "relatively" calm little friction with extraterrestrial creatures.

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PS: This story is pure fiction, there is no mapping in any way, this is a simple story about growth, about resistance, about sacrifice. In order to make it easier for readers to understand, the background of the story is similar to the earth, but it is definitely not the earth (harmony beast please go away), if you are interested, please add a great collection to the readers, thank you very much.

PS: After sending more than 10,000 words, I was fortunate to get the invitation of the editor-in-charge, thank you very much. The signed contract has been sent, please rest assured that the reader will collect it, and the minimum guarantee of 5,000 words per day after changing the state will be completed to ensure the completion of the book.