The era called the New Book... Nearly two centuries have passed since humanity first advanced into space.
In the year 187 of the Christian era, the "Balma War," which plunged the Earth sphere into unprecedented chaos, revealed the existence of extraterrestrial intelligent life and the existence of a large-scale war outside the solar system. However, what made humanity tremble even more was the existence of the STMC, the absolute enemy of all intelligent life. The risk of another invasion of the Earth sphere was predicted to be unreasonably high, as they managed to stop their invasion throughout Balma.
Humanity has nowhere to run... Several plans were being developed, advocating for the survival of Earthlings: the "Aegis Plan" to protect the Earth sphere from foreign enemies, the "Ultra Long Range Immigration Fleet Plan" to discover a new homeland... and the "Carneades Plan."
The battle between the rational forces, the forces of Jupiter, and the underground forces broke out in 188 of the New Western Era… Even during the “War of the Seals”
", the plans progressed step by step.
In 189 of the New Era, the Sealing War ended with the destruction of Ganeden, the artificial god that attempted to seal humanity on Earth… However, a few weeks later, signs of the next chaos began to appear. An unknown military organization and Lee Seong-in secretly moving on the Earth sphere, an unknown giant structure appearing in the asteroid belt, and an ultra-long-distance immigrant fleet… … .
Now comes the final battle of Earthly humanity… And the bells of war towards the end galaxy ring.
Japanese version.