Extra2007

The Astralis Express is no ordinary interstellar train. Unlike the Astral Express that follows the Path of Trailblaze, the Astralis journeys through the Fractured Cosmos—a realm of forgotten worlds, paradoxical timelines, and rewritten histories. Its mission? To navigate the cosmic anomalies left behind by an unknown Aeon… one that the others refuse to acknowledge.

Caelum Veyne, a former scholar erased from existence, should not be alive. The moment he touched the Codex Paradox, reality itself began to unravel—his past shifting, his future uncertain. People forget him. Memories rewrite themselves. And sometimes, in the reflections of glass, he sees a version of himself that doesn’t belong.

His only clue is a name: Lyra Aetheris. A girl who appears in visions of futures that never happened. A girl who whispers the same warning each time:

“Don’t trust the stars.”

But when Lyra suddenly appears aboard the Astralis Express—real, breathing, and undeniably present—Caelum realizes his fate is spiraling beyond his control. Together with the enigmatic crew, he must uncover the truth behind the Weaver, the cosmic force that maintains the fabric of destiny… and hunts down those who dare to alter it.

The deeper they travel into the Fractured Cosmos, the more they unravel a terrifying truth:

The universe is being rewritten. Entire civilizations vanish as if they never existed. And Caelum? He may be next.

Starlit Odyssey

There is a rule among the Aeons, an unspoken truth whispered between the stars:

The universe is a grand tapestry, woven together by an unseen force. Every life, every decision, every tragedy is a thread within the Weave of Fate—guiding existence toward a singular, inevitable outcome.

Those who stray from their destined paths vanish.

Those who attempt to alter fate are erased.

And yet… somewhere in the Fractured Cosmos, aboard an interstellar train that should not exist, a single thread refuses to be cut.

Caelum Veyne was not supposed to be here.

He should not have survived the collapse of his world. He should not remember the faces of people who were erased from existence. And he most certainly should not be holding the Codex Paradox, a book that defied the laws of the universe by rewriting itself with every passing moment.

Yet here he was, seated in an empty train cabin aboard the Astralis Express, staring at words that should not exist.

"The girl will appear soon. When she does, do not let her slip away."

He clenched his jaw, tracing the ink with his fingers. The words had not been there moments ago.

The Codex did not predict the future. It simply showed possibilities—shadows of events that might happen, or perhaps had already been rewritten. Most of the time, the text made no sense at all, entire passages vanishing before he could commit them to memory.

But one thing remained consistent.

A girl who did not exist. A girl who should not exist. A girl who, according to the Codex, had appeared in countless versions of reality—only to vanish every single time.

He had seen glimpses of her in the shifting pages. Silver hair like stardust. Eyes filled with knowing. And always, before she disappeared, she whispered the same words:

Caelum had spent too long searching for her. Too long questioning why his past kept rewriting itself, why people who had known him yesterday claimed they had never met him before.

Now, for the first time, the Codex was certain.

A sudden jolt shook the train, pulling him from his thoughts. The once-steady hum of the Astralis Express faltered, its movements no longer smooth. Through the window, the cosmos rippled, stars twisting in unnatural spirals.

A Weave Anomaly. Reality was shifting again.

The cabin door slammed open. A tall woman in a long conductor's coat stood in the threshold, violet eyes unreadable. Vera Noctis, the enigmatic leader of the Astralis Express, regarded him with an expression that betrayed nothing—except urgency.

Caelum shut the Codex. "Another anomaly?"

"No." Her voice was steady, but he could hear the underlying tension. "It's worse."

And behind her, standing in the dimly lit corridor, was a girl with long silver hair.

And this time, she wasn't disappearing.

Prologue – The Thread That Shouldn’t Exist