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. [Written by MAL Rewrite]

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

Chirico is awoken from cold sleep and separated from Fyana. His attempts to find her come to the attention of a Nextant, the replacement for the Perfect Soldier program. At the same time, the new Pope is to be nominated, and Chirico is religiously considered to be "The Untouchable". With one of the nominees related to the Nextant, Chirico's actions will have far-reaching political ramifications. (Source: ANN)

Sho and his friend Tetsurou stumble upon an odd alien artifact while walking through the woods. Then, the alien artifact breaks free of its metallic bonds and enters Sho's body, turning him into the Guyver. With this new power, Sho must do battle with the evil Chronos corporation and their genetically enhanced Zoanoids, who seek to get the Guyver back into their labs. No one close to Sho is safe from Chronos. He must fight. (Source: ANN)