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2014年，突然现身的外星人「佩多拉」向地球人提出「交易」，以石灰岩作为交换，地球人获得了比战机、战车、枪更便宜好用，任谁都能轻易驾驶的意识控制型泛用机器人「EXOFRAME」，并迅速扩散于全球，既能作为交通工具、工业机械，亦可成为战争机器…。2015年，首场以EXOFRAME作为武器的战事爆发，看似充满好处且和平的交易背后，隐藏的真相究竟为何…？
In South America, 2023. The U.S. Marine Corps intervene in the conflict between Ecuador and Peru with secret Exoframe unit.
In 2015, alien technology Exoframes have spread in developing countries. Lieutenant Bowman fears Exoframes' diversion to military weapons.
In 2016, Rei Miyajima from the Japan Self-Defense Forces came to the Indian Army base on the Karakoram range for researching.
In 2017, Loewner works for PMC in the Middle East. At the oil terminal, he fights to protect civilians from a terrorist raid.
Child soldiers forced to arm with Exoframes and fight. They are used as cheap consumables in conflict zones.
Child soldiers, trained by Zahir, can now freely maneuver their Exoframes and destroy tanks and attack helicopters one after another. Then the end of the civil war is announced.
Year 2021. There is an international trend of nations going against the Sankt Gallen Arrangement that regulates market distribution and certain usage of EXOFRAMES. The global world is focused on the military parade being held in the Republic of Azania, a nation leading in this opposition trend. The President of the Republic of Azania, Raila Reshep, who successfully brought about a miraculous economic growth from the civil war and is considered the real leader of the new African Union, is pushing for the use of EXOFRAMES.
Year 2022. Despite nations around the world investing a huge budget and providing the world's most skilled specialists, attempts to analyze the EXOFRAME and understand the alien technology have failed. In the U.S., Project Xenogage in Area 51 was created to analyze alien technology. But, this project had also been put on hold. Now the project is being taken over by an eccentric leader who is not trying to decipher the alien technology, but rather, trying to find ways to use it.
Year 2023. The expansion of the EXOFRAME has destroyed existing industries and has weakened the economies of developed countries, leading to chaos in the international order. No one can stop the conflicts and civil wars that have erupted around the world. The border dispute between Ecuador and Peru has grown large and now involves neighboring countries. The Peruvian Jungle Division's EXOFRAME Platoon came under heavy fire from the mysterious EXOFRAME unit while defending their Forward Operation Base, and was destroyed by snipers.
Year 2025 - A group of EXOFRAMES walk through the desert on the Mexican-American border. The people on board are forced to carry drugs in exchange for assistance crossing the border into the United States. One of them is a young girl who is given an amulet of Santa Muerte - the Saint of Death by the boy next to her.
Year 2030. The EXOFRAME, which can operate in any environment, showed its full potential under the sea. The underwater world became a new battlefield for the EXOFRAME. In the Barents Sea adjacent to the Norwegian Sea, Jan and Freya are workers for a private company in disguise.
Bowman and his fellow Marines, who are investigating the worldwide spread of EXOFRAMES discover some footage. It reveals a terrifying future 400 years from now. In the year 2444, the EXOFRAMES’ battlefield moves into space.
