Season 5 of Natsume Yuujinchou.

In the year Universal Century 0096, three years after Char Aznable's failed attempt to force human migration into space, life continues in the colonies orbiting Earth. One such colony, at Side 4, is home to Banagher Links, a 16-year-old who lives a quiet life among his classmates. Audrey Burne, the last descendant of a great tyrannical family, takes it upon herself to steal the key to a mysterious device known as "Laplace's Box." It is said that the Box has the power to shape the course of the universe, and Audrey travels to Side 4 in an attempt to take it from its current holder and keep it from the Sleeves, the surviving remnant of Char Aznable's Neo-Zeon. In her search, she stumbles across Banagher and changes his life forever. When Side 4 comes under the attack of the Sleeves and its prolific fighters Marida Cruz and Full Frontal, Banagher takes control of the newly built Gundam Unicorn to defend his friends and protect the fate of humankind. [Written by MAL Rewrite]

2199 AD. Yamato tried to leave behind the Large Magellanic Cloud galaxy, after receiving a "Cosmo Reverse System" at its destination, Iscandar. However, suddenly, it encounters a mysterious group at the edge of the Large Magellanic Cloud. The crew finds out that the group is called the "Gatlantis," and that its leader is the Gutaba expeditionary force commander who calls himself "Goran Dagaamu of Thunder." The commander demands that Yamato be handed over to him. Yamato, wanting to hurry to Earth, escapes the fray. However, Yamato is attacked by a devastating beam weapon called the "Flame Direct Attack Cannon" that can transcend space. Yamato was able to retreat, but ends up getting lost, and finds itself in a strangely colored irregular dimension. The crew decides to turn off the engine on the ship, and explore a mysterious planet. In order to collect information, Kodai, Kiryū, Sawamura, Niimi, and Aihara land on the planet. What they saw when they arrived was a ship that was not supposed to be there. Dagaamu chases after the traces of Yamato's warp, and also reaches the strangely colored space. The planet on which Yamato landed was in fact what Dagaamu had been looking for all along.

Generations have passed since the war with the Space Monsters started, and none remain who know how it began, with even records of those times being scarce. It is a lost cause, but humanity still fights against them, relying on the "Topless": a group of elite space pilots with special powers that allow them to use the Buster Machines—the last hope against the Space Monsters. Nono, a girl from a remote Martian town, has heard tales all her life of the legendary pilot "Nono-Riri," and wants nothing more than to leave her humble life behind and follow in the footsteps of her idol. Though she has no idea of the dangers that lie ahead, nothing will stop her from achieving her dream. While Nono is down on her luck, she chances upon the lonesome Topless pilot Lal'C Melk Mark, and decides to stake her entire future on following Lal'C, no matter the cost. [Written by MAL Rewrite]