Continuation of Soukyuu no Fafner: Dead Aggressor - Exodus.

Eleven-year-old Sara Werec's elder brother, Ralph, was sent to the frontlines of an interstellar war 130 light years away, and Sara vowed to reunite with him one day as a comrade. Five years later, Sara is a student at Grapera Space Armed Soldier Academy, training to become a Reasoner, a pilot of an advanced weapons system called a Strain. When the academy is suddenly attacked by enemy forces, Sara enters battle against a Strain that quickly overpowers her. After incapacitating her, the pilot reveals himself to be her Ralph. Killing all the other students and destroying the school, he disappears, leaving Sara to question everything she has ever known. Soukou no Strain is the story of Sara as she reenters training under a new name, now determined to confront her brother and make sense of her brother's actions.

Chirico visits an oasis town and meets Gotho and his friends for the first time in 32 years.

Riko Morisawa, a young girl from Tokorozawa, goes on a trip to Tokyo with her friend Mana. While they roam around the shops of Ikebukuro, Riko spots a billboard about an event related to the Little Battlers eXperience (LBX) line of toys. Mana urges Riko to purchase one, and although initially declining, Riko soon avails a few LBX kits for her father. Upon opening one of the boxes labeled LBX Assassin, a temporal rift manifests itself and transports Riko into the sky of an alternate Japan. While she falls at terminal velocity, an exosuit based on the LBX Assassin materializes around her, saving her from the descent. However, on the ground, she encounters the Mimesis, lethal metallic creatures that invade world after world. As she flees away from these monsters, Riko is rescued by four other LBX-equipped girls. After learning about Riko's predicament, the group decides to recruit her into their combat unit—Soukou Musume. Soukou Musume Senki narrates how the unit endures the trials and tribulations they face, developing unbreakable bonds along the way.