In the 3068th year of Blue Star's Dark Era, the end is approaching, and there are only 8 countries left in the world... As the second most powerful country, Country A is similar in strength to the first powerful country, Country M. It also has a powerful state-owned machinery company, and its mechanical equipment is ahead of other countries. However, countries not only face competition and games with each other, but also jointly fight against the demonic threat from the subspace. There are four lords in the subspace, Khorne, Tzeentch, Nurgle, and Slaanesh, who often invade Blue Star through space cracks... Lei Zheng, the chief agent of Country A No. 001, Was born out of the sky, resurrected his lover, and traversed the eight countries... Turning the tide of collapse and supporting the collapse of the building...