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This is a world ruled by "beast-killing" creatures. They arrived in 2036... They are tall and strong, and some have bodies as big as hills. They can cause powerful natural disasters with every move of their hands and feet. They can cause a magnitude 10 earthquake with just a stomp of their feet. The underground fortresses that humans think are very strong will be easily collapsed by them! Some are known for their speed. They can come to you instantly from a hundred meters away, and the first time does not exceed two seconds! They are invulnerable and cannonballs cannot leave much of a mark on their shells. The nuclear weapons that mankind is proud of only suffer a little damage in front of them! They are encroaching on the domain of humans, who are the overlords of Blue Star. Humanity is retreating steadily. The remaining 1.05 Billion people have no choice but to build a hundred-meter-high wall with a terrifying thickness of 13 meters, using a new alloy "lunar alloy" The tall city walls isolate humans from the rest of the world and lead an elusive existence. It was not until 3 pm in 2046 that the 749 Supernatural Special Team discovered a special kind of crystal under the cave in the West Mountain of the Magic City. They are everywhere. Once mined, a second crystal complex will appear in the same place the next day. After research, humans have discovered that as long as the female group's own blood is dripped into the crystal, they will awaken and become "Ex Machina" Some of them can be activated into powerful exoskeletons, capable of punching thousands of pounds with one punch. Some can be awakened into compound bows. After strengthening, each arrow can be compared to a Barrett sniper rifle! Men who use weapons transformed by Ex Machina will be called "Countermen" Male protagonist: Liu Ge Heroine: Shangguan Mei

This is a "cyborg world" where people, in order to gain infinite power and eternal life, will transform part of their bodies and equip them with mechanical limbs. But since the establishment of this world, human beings are no longer satisfied with their own strength. They are moving towards a higher civilization. However, this decision will cause the foundation of human civilization to be unstable. So some people are taking a stand against the "Cyborg" craziness! The two sides refused to give in to each other, and the dispute eventually spread toward war! They are divided into two factions, one is the "pure human beings" whose themes are pacifism, and the other is the "cyborgs" whose themes are war and plunder. The war has continued since 2039, and the two groups of people have been forced to become enemies. Even if your relatives are cyborgs and you are a pure human being, the Federation is not allowed to live in peace! This scene lasted for a full 25 years, and finally in 2064, the two sides signed a 100-year armistice agreement. The two sides will not interfere with each other's development! Until now in 2071, both sides will be arguing in private... And you traveled back from 2024, resulting in chaos in time and space, and a mysterious substance quietly broke into the world! From now on, whether you are a cyborg or a pure human female character, you will awaken your machine-girl mentality at the age of 18. Some of them are rough-skinned tank girls, some are supercar girls known for their speed, and some are star fighter girls with the title of Sky Overlord. And in the drama of "Meeting on a narrow road", you met "Shangguan Mei'er", a super-light fighter girl with unlimited growth. You are about to embark on a journey ahead!