Ema finds a special lamp that her father left for her. Ema and the brothers rub the lamp to find that something peculiar happens in front of them. (Source: ANN)

When ordinary high school student Aoba Watase is suddenly targeted by a giant robot known as a Valiancer, he is saved by his mysterious classmate Hina Yumihara. After revealing that she and their robotic enemy are from the future, Hina suddenly propels Aoba 70 years forward in order to prevent his death. Upon arrival, Aoba finds himself in the cockpit of a Valiancer called Luxon, stuck in the midst of a firefight between the military forces of the Free Pact Alliance (FPA) and Zogilia Republic. After he shows high compatibility with an FPA pilot named Dio Weinberg, the two perform a successful coupling, allowing them to share experiences and subsequently increase their capabilities and skills. Although Aoba is able to survive this unexpected battle, he is taken into custody by the FPA ship Cygnus, who wishes to interrogate him. While the student's main concern is whether he will ever be able to return home, what he doesn't realize is that he is about to get caught up in a war to protect the world.

The two part finale of Buddy Complex television series deals with the final battle between the Free Treaty Alliance and the space division of Zogiria, lead by an elderly Bizon, as Earth and time itself hang in the balance.

In the wake of an earthquake that devastated most of the city, Tokyo has been rebuilt in record time due to the development of humanoid robots known as boomers. After the disaster, these machines now service the city as cheap labor. Genom Corporation is the mastermind behind the boomers, having become so rich and powerful that they have extended its influence into space. However, all is not well with the boomers. Random breakdowns in their neural structure are causing some of them to go berserk, destroying property and killing humans in violent rampages. To combat this, Tokyo has formed the Advanced Police, a peacekeeping force with jurisdiction over boomer matters. There are also rumors of a second group known as the Knight Sabers, a vigilante unit operating from the shadows. Trying to investigate the Knight Sabers, the adventurous Linna Yamazaki travels to Tokyo in pursuit of her heroes. There, she finds the enigmatic singer Priscilla Asagiri, the beautiful entrepreneur Sylia Stingray, and the exuberant Nene Romanova, each with their own reasons for coming together. As the struggle intensifies, the girls learn that the boomer problem might delve deeper than any of them could ever imagine.