Hitotose Chitose was always alone and untrusting of people but when 5 female teachers appear and started living together with him in his family's house as his mothers, things started to change and pick up, together with Hazuki-nee and Minazuki (his 2 sisters) everyday is a lesson.

The first short story focuses on Favaro and Kaiser between the events of the first and second series as they visit Favaro's home village. The second short story shows Kaiser as a knight commander sparring with Jeanne, and sharing the reasons they remained as Orleans Knights in the aftermath of the final battle against Bahamut.

Alfred Izuruha is a 10-year-old who lives in the neutral colony cluster of Side 6 and, like most boys his age, is obsessed with the war between the Earth Federation and the Principality of Zeon. Unbeknownst to him, Al's next-door neighbor, Christina, is the test pilot of a prototype Gundam being developed in secret by the Earth Federation in the colony. A Zeon Special Forces team is assembled and tasked with infiltrating the colony in order to either steal or destroy it. When a skirmish breaks out between the Federation and infiltrating Zeon forces, the fascinated Alfred stumbles upon a Zaku mobile suit that has been shot down, piloted by Zeon rookie Bernard "Bernie" Wiseman. After this encounter, the two start a mutual friendship, so Alfred can learn more about the war that interests him so much, and Bernie can acquire inside information about the colony to aid his team's mission. [Written by MAL Rewrite]

Akito doesn't want to fight. Despite a childhood spent on the anime Gekiganger 3, a Mecha show, he'd rather cook than pilot a Mecha. Fate intervenes when his home on Mars is destroyed, and he is transported instantly to the Earth, mysteriously. He has questions no one can answer fully, but follows a girl from a chance meeting in hopes to discover any. The girl, Yurika, is captain of the private battleship Nadesico, and in order to follow her, he enlists as their cook. Possessing the nanite implants that allow to control mechas, he's a handy backup pilot for the mechas of the Nadesico. He joins a crew bent on avenging Mars that seems to be composed of only misfits, otakus, and ditzes; however, in reality, they are handpicked experts. They take their own private war back to Mars to face the harsh reality that life may not always be like a Giant Mecha series. (Source: ANN)