The war between the mechanical city and humans has been going on for a hundred years. After being wiped out by the mechanical army, the soldier Li Xinyan woke up in the dungeon. He found that his body had been transformed. He was no longer a human, but a mechanical life form! Lin Zicong, the captain of the special operations team of the military department, became his boss. He was half imprisoned and half continued to fight. Li Xinyan accepted his new identity. But in the follow-up series of special operations, he discovered that there was another identity, and this The fragments of memory left behind by his identity are already decades ago! Who is he? The difference in thinking splits into two factions. Lin Zicong, who is dominated by elite troops, and Leng Ling, who is dominated by mercenary forces, represent these two different fighting concepts against the mechanical city. The two forces are fighting openly and secretly. Who can win the battle? Winning? No one can give a conclusion. And what is the purpose of taking down the ground? Is it just to conquer human beings? For the purpose of war, what are the twelve gods high in the sky thinking? This article combines military, adventure, Fantasy, technology, and soul theory, and it is also a love story at the same time, I hope you like it.