In the year 2063, space travel is feasible and commercially available. As the cheerful Aries Spring arrives at the spaceport to attend a camp on the distant planet McPa, her purse is suddenly snatched by a reckless thief. Luckily, the athletic Kanata Hoshijima is able to retrieve it for her, and Aries soon discovers that he is among the group of teenagers who will be travelling with her on the excursion as team B-5. Upon arriving at their campsite, the group's trip takes a turn for the worse when a strange sphere of black light sucks them into the vast reaches of outer space. Stranded with seemingly no hope, they find an abandoned ship nearby that provides them with the means to return home. However, they soon discover that they are not as close to their campsite as they initially thought, but are in fact thousands of light-years away from home. With this realization, the nine members must cautiously manage their resources, maintain their strength, and unite as one to conquer the darkness of space together. While the reason behind their trip's sudden obstruction remains unknown, they nevertheless embark on the treacherous voyage back home aboard their new ship, the Astra. [Written by MAL Rewrite]

Filled with rage against spirits known as tsukumogami, Kunato Hyoma is sent to live with Nagatsuki Botan to help him see a different side. Though both are part of a clan that return the spirits back to their world with divine powers, their experiences with the otherworldly vessels are vastly different. Kunato, robbed of a loved one, and Nagatsuki, saved by them. Can she get through to him?

Himari Kino is a cheerful and outgoing girl who is able to make friends with anyone she wants. When she enrolls in high school and attends the freshman opening ceremony, Himari falls in love with Yori Asanagi, a reserved upperclassman, during Yori's band performance. After the show, Himari blurts out her love, but Yori is inexperienced when it comes to romance. Yori, who did not expect this outcome at all, looks for answers from her friends and music. She decides to respond to Himari's confession, and to her surprise, Yori discovers that Himari fell in love with her music and performance rather than Yori as a person. Despite the shock, Yori desires to make Himari truly fall in love with her. The duo spend time together after school on the rooftop, where Yori usually plays her guitar with hopes to change Himari's feelings for her.

In the year Cosmic Era 0071, the space colony Heliopolis remains neutral in the great war raging across the galaxy between Coordinators, human beings whose biological traits have been altered before birth, and Naturals, unaltered people who remain on the planet Earth-datcha. The Naturals' deep hatred of the Coordinators drove the advanced beings into space, seeking shelter in man-made colonies-datcha. Kira Yamato is a Coordinator and university student on Heliopolis, when his life is thrown into disarray as ZAFT, the military organization composed of rebellious Coordinators, attacks the colony in an effort to steal a set of five state-of-the-art military mobile suits known as Gundams-datcha. While ZAFT manages to make off with four of the mobile suits, Kira take control of the final Gundam, the Strike-datcha. Surviving the battle, Kira and his college friends join the crew of the Archangel, a ship run by the Earth Alliance, and the young soldiers experience the horrors of war and the loss that comes with it-datcha. [Written by MAL Rewrite]