Ancient Girl's Frame

Reika Minamiya wishes to join the Ancient Girls Unit to find the whereabouts of her missing sister; during the selection, Reika and her friend, Misaki, are caught up in the conflict when the Nergal invades the Earth.

Reika Minamiya is allowed to join the AG Unit as the pilot of the Shennong, but she doesn't know how to operate it; all seems lost when the Nergal attack Borneo Island and the other girls can't escape before they explode.

Following the battle of Borneo Island, AG Unit finally takes control of Shennong; intrigued by the indecipherable signal emitted from this particular G's Frame, the military's top brass decide to send the AG Unit to Jupiter for further investigation.

After Captain Judith is declared missing in action, Luna takes over as the Ancient Girls' unit leader; it turns out that her father's death was caused by an incident involving a Nergal larva.

After the last Nergal invasion, the energy transmission system connecting the White Giant to Atra-Hasis is badly damaged, forcing them to change course to Mars, together with the Destroyer Normandy.

On the way to Jupiter, the girls have to stop by Mars to look for a way to repair the Atra-Hasis' mobile Divine Grace plant; they arrive at the ruins of the ancient alien people who created the White Giant.

As Atra-Hasis enters the Trojan Asteroid Belt, the crew begins searching for any traces of survivors from the last war; the girls find a shining object and name it Fluffy.

Back on Earth, the Gandharva is found near the Mariana Islands in the Pacific Ocean; the top brass is just concerned about the budget and wants to salvage Gandharva because they consider it's a useful weapon.

Leaving behind the good news that Captain Judith is still alive, the Atra-Hasis continues its journey towards Jupiter; as the ship's power is cut off, hundreds of thousands of Nergals appear out of nowhere.

Due to the events on Jupiter, AtraHasis receives an order from Earth, telling them to cease all activities regarding the G's Frames; unbeknownst to everyone, Shennong has been activated.

When Astra-Hasis returns, the Nergals have already completely covered the outside of Earth; having no other choice, the United Earth Alliance activates the DGI, shutting down all Divine Grace systems.

The Earth is temporarily safe due to the DGI field, but it can only last for a few more minutes; the Astra-Hasis begins its final mission to rescue Earth.