Momiji is an average girl until the day she finds she is the descendant of the great Kushinada family. Only she, with her Kushinada blood, can stop the Aragami, demonic plant-like monsters threatening to destroy Japan. Along to help her is the TAC, and a possible love interest in a young man named Kusanagi. (Source: ANN)

A renegade scientist in San Francisco has found a way to create a new creature called a Neo-Aragami without the power of Susanoo. When these monsters start to terrorize California, the U.S. turns to the old members of the Terrestrial Administration Center (TAC) for help. (Source: ANN)

Futaba Yoshioka used to be an attractive and popular middle-schooler—well liked by the opposite sex, but ostracized by the girls. Nevertheless, she was able to brush all that off, because the only opinion that truly mattered to her was that of Kou Tanaka, a classmate with whom she shared a shelter from rain once, followed by quite a few other precious and significant memories. She even succeeded at making plans to meet with the quiet and innocent boy at the summer festival, but a simple misunderstanding, and Tanaka's subsequent disappearance, left her walking the halls of her school friendless. Now in high school, Futaba is not your typical adolescent girl. Determined to become a class favorite this time, she avoids all unwanted attention and, instead of acting cute and feminine, only stands out through her tomboyish behavior and disheveled look. But still, her world is soon turned upside down when the only boy she ever liked unexpectedly comes into her life once again—except he goes by the name of Kou Mabuchi now, and it is not his name alone that has gone through a sea change. [Written by MAL Rewrite]

15 children, 8 boys and 7 girls, are enjoying their summer camp together when they suddenly discover a grotto by the sea. When they enter the mysterious place they find a room full of computers, as well as a man named Kokopelli, who introduces himself as the owner. He claims to be working on a game which involves a giant robot that has been designed to protect the Earth from 15 different alien invasions. Kokopelli hasn't been able to test the game yet, so he persuades all but one of the children to sign a contract in what he claims will be a fun adventure. However, as soon as the contracts are signed things start to take a much darker turn. In Bokurano, the children must now pilot the giant robot Zearth one at a time in the hopes that they will have what it takes to defeat all of the upcoming enemies. But Kokopelli has left out one very important piece of information: the giant robot Zearth's energy source.