In the war-clouded Capus Star Territory, Captain Alyssa, the captain of the Federation starship "Steadfast", is facing unprecedented pressure. The imperial fleet's provocations are becoming increasingly frequent, and the attacks of the elusive "Void Predator" have made the defense line even more dangerous.
At the same time, his talented but elusive mecha pilot, Lieutenant Noah, not only seems to have a strange connection with alien creatures, but the shadow of his past is also quietly approaching. A sudden large-scale attack plunged the "Steadfast" and its fleet into a huge whirlpool of conspiracy.
Alyssa must strategize on the command platform, piloting a giant steel ship to navigate through artillery fire and conspiracy; while Noah must drive his "Nirvana" mecha, go deep into the most dangerous battlefields, and face the inner demons and powerful enemies in reality. From the initial estrangement and friction, the two gradually understood the burdens and beliefs behind each other, and formed an incredible tacit understanding in the test of blood and fire.
Their fate is not only related to the outcome of a battle, but may also reveal the true identity of the "Void Predator" and even change the balance of power between humans and the Tiran Empire. In this bright and dangerous sea of stars, the roar of starships and the afterimages of mechas jointly compose an interstellar legend about courage, sacrifice, redemption and protection.
