Fifteen years had passed since the war between Earth and Mars, and Princess Asseylum of Mars, seeking peace, orchestrated a goodwill parade on Earth. Slaine, a boy from Earth, prayed for her safety. Meanwhile, Inaho, a high school student, …

From the heavens, they descended – the Mars Knights, their intent to conquer. A brutal assault upon Earth, spearheaded by armored warriors, promising an invasion of the planet. But humanity would not yield. The United Forces rallied, launch…

The Mars Knight relentlessly pursued Inaho and her companions. Inaho grew increasingly wary of the knight's fighting style, and, with the support of Marito’s group, initiated a counteroffensive. Unaware of the truth, Slaine had been tasked …

He harbored unease about the war, yet found himself isolated, unable to discern friend from foe. Meanwhile, Inaho, acting as Rayet for the secretive Seylum, carried a clandestine charge, navigating a world where identities were carefully co…

An order had been issued from Mars: an investigation was to be undertaken on Earth. Slaine seized this chance to address the Martian emperor directly. Meanwhile, the assault landing ship carrying Inaho and the others continued its course to…

The vessel breached the atmosphere, and Marito was instantly submerged in a torrent of memories – echoes of the brutal conflict that had ravaged Tanegashima, a place now scarred by Heaven’s Fall. As they descended, a relentless assault bega…

They were hard-pressed in their fight against the Martian Kataphraktos, but then a mysterious fighter craft appeared, joining the fray. Meanwhile, Darzana and her crew concealed the damaged assault ship in a dock, where they discovered a co…

He was questioned, of course, the assumption hanging in the air that he possessed knowledge he wasn't willing to share. Yet Slaine held his tongue, the memory of Princess Asseylum a shield against the probing. Beneath the surface of the int…

Within the confines of the Kataphraktos combat simulator, a familiar tension hung in the air. Rayet wrestled with the ghosts of her resentment, her anger directed at the Mars Knights, and the ever-present shadow of her own history. Beside h…

A shadow fell upon the land, and with it, a gathering of forces. The motives of Count Saazbaum were revealed, and Slaine understood the true nature of his adversary. Yagarai entrusted Captain Magbaredge with Marito’s patient chart, a silent…

He launched his attack. The UEF met his offensive in this land of brutal cold. Inaho and the others devised a plan to fight back. Alone, Slaine fought his way through the fierce battle toward the Deucalion.

They pressed onward with their design, but encountered the Kataphraktos of Count Saazbaum. Slaine, striving to rejoin Princess Asseylum, found himself unexpectedly embroiled in conflict. The fierce struggle on the snow-covered plain intensi…

A year and a half had passed since the assassination of Princess Asseylum Slaine, yet the echoes of that event still resonated throughout the galaxy. Despite her Earthborn origins, she had earned the distinction of Mars Knight, and now comm…

Slaine departed for their base on Marineros Island, accompanied by the Stygis Squadron and heavily armored Kataphraktoi. Meanwhile, the Deucalion arrived at the United Forces of Earth’s Trident Base, though some of the soldiers stationed th…

At Marineros Island, the assembled Knights of the Black Blade braced for conflict. Slaine, eager to join the fray, found himself met with disdain from his former comrades, their scorn stemming from his earthly origins. Meanwhile, aboard the…

A summons arrived for Marito, serving alongside Yuki Kaizuka, detailing orders for a new operation. Yagarai, however, harbored reservations about the implications for Yuki's assignment with a unit detached from the Deucalion. Elsewhere, a f…

Count Marylcian and Count Barouhcruz devised a new plan. Elsewhere, Rayet faltered before the Mars Knight prisoner, and Inaho discerned her true motives. Meanwhile, Slaine discussed birds with Eddelrittuo. The situation escalated as Ra…

A disquiet settled upon her, though Slaine assured her he would find merit in the unforeseen circumstance. Yet, a growing sense of confinement tightened around him. Meanwhile, the crew of the Deucalion forged an alliance with a UFE unit loc…

Slaine initiated a new campaign, partly to quell the dissenting factions. Meanwhile, Captain Magbaredge, summoned by high-ranking UFE officials, gleaned a clear understanding of their assessment of the *Deucalion*. There, she received order…

The advance of the Mars Knights proved overwhelming. Inaho and the Deucalion joined the fray, yet found themselves hard-pressed by a sudden assault. Meanwhile, Slaine confided in Eddelrittuo. A Mars Knight who had sought an audience with Pr…

The Deucalion and her crew prepared for assault, devising a strategy to confront the Mars Knights. Meanwhile, fueled by renewed resolve, Slaine continued his advance across the surface, seeking to expand his dominion. Yet, whispers of doubt…

A new directive arrived, yet Captain Magbaredge perceived a deeper current at play. Inaho moved to safeguard Princess Asseylum. Meanwhile, Slaine laid out his purpose for Princess Lemrina, unaware of the shifting tides around them.

The crew of the Deucalion braced themselves for the impending conflict. Captain Magbaredge faced Vice Admiral Hakkinen, participating in the perilous mission. Slaine resolved to commit all his forces to prepare for a final showdown. Princes…

He yielded to his fate, having reached an understanding. Elsewhere, Inaho answered the call of his own destiny. Someone wept at the battlefield, where too many lights flared and died. A solitary girl witnessed the final moments of their str…