Lieutenant Oliver May and the 603 Technical Division Unit aboard the Jotunheim continue testing and evaluating experimental weapons to aid the Zeon war effort against the Federation Forces. At the end of each experiment, the tale of the trials and tribulations faced by the weapon and its test pilot adds a small chapter to the long history of the One Year War (Source: ANN)

The year is Universal Century 0079. Oliver May is a technical officer in the Zeon 603rd Technical Evaluation Unit , in charge of testing new military technology. Stationed in the Jotunheim, a civilian transport ship that was converted into military use, Oliver must head into battle and experience the One Year War, only this time from the perspective of a weapon tester who struggles to make an impact on an evolving war during changing times. (Source: ANN)

Japan, 1988. An explosion caused by a young boy with psychic powers tears through the city of Tokyo and ignites the fuse that leads to World War III. In order to prevent any further destruction, he is captured and taken into custody, never to be heard from again. Now, in the year 2019, a restored version of the city known as Neo-Tokyo—an area rife with gang violence and terrorism against the current government—stands in its place. Here, Shoutarou Kaneda leads the Capsules, a group of misfits known for riding large, custom motorcycles and being in constant conflict with their rivals the Clowns. During one of these battles, Shoutarou's best friend Tetsuo Shima is caught up in an accident with an esper who finds himself in the streets of Tokyo after escaping confinement from a government institution. Through this encounter, Tetsuo begins to develop his own mysterious abilities, as the government seeks to quarantine this latest psychic in a desperate attempt to prevent him from unleashing the destructive power that could once again bring the city to its knees.

2041, Earth. After being pulled into the planet's atmosphere, the fall of the Freeport Space Station has led to the Great Cataclysm—an event that devastated the Earth's environment. Left as a polluted wasteland, survivors go to war with their fellows to guarantee themselves resources; in the end, these scrimmages have erased the whole existence of humanity. Coincidentally, life still exists on a moon base. Although it is supposedly meant as an immigration outpost for the mission to explore Mars, it is soon turned into a city, both regulating and allowing its citizens to flourish. The lunar base, officially named The City of Eden, holds the hope of fully colonizing the moon. Takeru, one of many citizens of Eden in the year 2267, participates in Tube Races between gangs and groups using hovercraft-like vehicles. Due to causing an accident in one of his races, Takeru is sentenced to complete volunteer work outside the city. While clearing his punishment, Takeru stumbles upon remains that may unravel the truth about Earth and Eden's genesis.