The events of the anime series Macross Δ prequel take place 9 years prior to the main anime.
U.C. 0097, one year after the opening of "Laplace's Box." Despite the revelation of the Universal Century Charter that acknowledges the existence and rights of Newtypes, the framework of the world has not been greatly altered. The conflict later dubbed the "Laplace Incident" is thought to have ended with the downfall of the Neo Zeon remnants known as the Sleeves. In its final battle, two full psycho-frame mobile suits displayed power beyond human understanding. The white unicorn and the black lion were sealed away to remove this danger from people's consciousness, and they should now be completely forgotten. However, the RX-0 Unicorn Gundam 03, which disappeared two years earlier, is now about to show itself in the Earth Sphere once more. A golden phoenix... named Phenex. (Source: Gundam.info)
One day, Sai Amagi and Chikage Ebihara are transported to another world by a mysterious woman who wants them to save the world. From the cockpit of the N-Extreme Gundam, these two are surprised by the world they witness.
Following the events of Skull Heart, Tobia and his companions encounter Europa, Crux Dogate's second wife and an original villain from Crossbone. She forewarns them about a resurgent Jupiter Empire invasion. The F-99 "Recordbreaker" is a noteworthy mobile suit, resembling Crossbone Gundams and being the first to utilize the "Wings of Light," which later became synonymous with the V2 Gundam.
A thousand years into the future, Earth has been destroyed by powerful aliens known as Gauna. Although mankind has fled into space, the giant spaceships they now call home are still constantly being targeted by the strange creatures. Piloting mobile weapon units called "Gardes," humanity is able to take a stand against their adversaries by destroying their cores, preventing the monsters from regenerating their protective shell of placenta. Within the vessel Sidonia, a boy named Nagate Tanikaze surfaces from its depths for the very first time in his life. With an incredible amount of time clocked into pilot simulators during his isolation deep within the ship, he quickly proves to be an indispensable asset to humanity's defense force. With the opportunity to pilot the legendary Garde Tsugumori, he fights to protect Sidonia from a grim demise.
In the sequel manga of Eureka Seven, the storyline shifts to a youthful character named Ao, who uses his immense "power" to rekindle the concept of "destiny."
Watt Sears has traded his glory days as a Mechsteel knight for a humble life as train station employee with a knack for showing new pilots the ropes. Problem is, the city’s baron—his boss—would love nothing more than to see Watt reclaim his old mantle as a Steelrider who hunts monsters and defends the city. Now nearing forty, the once-legendary pilot would much rather support the new generation than stand in the spotlight himself. Peace and quiet were the last things waiting for Watt, however, as his storied past literally comes to find him. When Anna, his long-lost daughter from a bygone romance, appears before him to ask for his help in a brewing royal power struggle, Watt vows to protect her. But as assailants descend on the city from all sides, keeping his promise proves to be no simple task. With turmoil rattling the kingdom, can this old knight survive his new post and keep his daughter safe? Source: J-Novel Club
Upon being transported through a spacetime anomaly, the Autobots and Decepticons find themselves embroiled in Mazinger Z's battle against the nefarious Dr. Hell and Baron Ashura in a parallel Japanese dimension. Mazinger vs. Transformers is a manga crossover that unites figures from both the Mazinger and Transformers universes.
An epic science fiction tale of the battle between Ambassador Magma, the "rocket-man" created by the god-like creator of the earth known as "Earth," and the evil spaceman Goa unfolds before the eyes of newspaper writer Murakami Atsushi and his family. After Goa sends them 200 million years back in time and shows off his power by unleashing dinosaurs, he dares Murakami to report his plan to take over the earth. In the present, Mamoru is summoned by Magma, who takes him to meet Earth and creates three rocket-men to thwart Goa's ambitions. Armed with a special whistle to summon the rocket-men when he is in peril, Mamoru and his fearless allies engage in a fierce battle against Goa, who has already launched his invasion with the help of shape-shifting creatures called "Hitomodoki."
This saga found its home in the pages of Gundam Ace starting in 2010. It stands as the long-awaited sequel to Revival of Zeon, a work that first graced bookshelves as a self-contained volume back in 1988.
Although his MS-14B Gelgoog High Mobility Type suffered severe damage from the FA-78-1 Gundam Full Armor Type's unstoppable firepower, Johnny Ridden survived the grueling battle of A Baoa Qu. He managed to reunite with his modified MS-06R-2 Zaku II High Mobility Type, nicknamed the "Full Bullet Zaku," thanks to the help of a fellow soldier and a Dolos-class carrier.