To counter the great powers surrounding the mighty empire, the "Sky Striker" was developed using advanced military technology. Its power was enough to instantly change the course of battle. The girl "Raye," entrusted with the "Sky Striker," repeatedly encounters the girl "Roze" from the hostile nation wielding equal power on the battlefield. Each time they clash with the "Sky Striker," Raye gradually gets a glimpse of the "human heart" within Roze and rises up to free her! To meet Roze not as a "weapon" but as a "person"---

The girl "Roze" from the empire couldn't understand. Why the girl "Raye," who should be her enemy, was coming to save her instead of destroying her. Each time Roze clashed with Raye and the "Sky Striker," she felt something warm and indescribable from Raye. The empire saw through Roze's hesitation, and she was absorbed into the tactical weapon "Zeke." As Roze becomes part of Zeke and loses consciousness, what will she feel in Raye, who is coming straight towards her---

In the northern most reaches of a forbidden land, lies the Nation of Dogmatika. Its people, marked by the sacred stigmata bestowed by High Priest Maximus, live beneath the unwavering rule of divine doctrine. Receiving the High Priest’s blessing on that day was Ecclesia, the “Most Virtuous,” the only one in history to bear the stigmata on her forehead. After the ceremony, Ecclesia stood alongside the previous Virtuous Vestal, “Fleurdelis,” speaking in earnest about what’s to come — when suddenly, the skies above Dogmatika split open. From the rift emerged a beast thought to exist only in legend — a dragon. Amid the flames of war, a fallen dragon boy and a wary girl cross paths. From their fated encounter begins the tale of the fallen and the virtuous.

A single dragon suddenly appeared in the skies above the great Nation of “Dogmatika,” only to be felled in a flash by the knight “Fleurdelis,” hailed as the “Indomitable Vestal.” At that very moment, agents from the opposition faction, “Tri-Brigade,” infiltrated the heart of Dogmatika territory. Their leader, “Shuraig,” launches a daring solitary aerial assault, aiming to distract Fleurdelis and buy time for the rescue of their captured comrades. Meanwhile, at the crash site of the fallen dragon, the “Ecclesia” discovers a wounded boy. Wishing to help him, Ecclesia throws herself between the Dogmatika forces and the Tri-Brigade soldiers, trying desperately to halt the clash…

“Ecclesia” is punished for trying to protect the wounded boy. In a desperate attempt to save the suffering girl before him, the boy throws himself forward, transforming into a dragon once again by absorbing power from nearby. Seizing this opportunity, the "Tri-Brigade" spring into action to rescue their captured comrades. In response, the zealots of "Dogmatika" rise to eliminate the heretics. The battle on the ground descends into chaos. Far above, in the skies, "Fleurdelis" rushes to reach Ecclesia, only to be intercepted by "Shuraig," who stands in her way with unwavering resolve.

The morning after the battle in Dogmatika, “Ecclesia” awakens in a remote camp, where the “Tri-Brigade” heads their operations. Ecclesia falls into despair upon learning she has been exiled from her homeland. Alongside her is a young dragon boy with no memory of his past, rescued from the battlefield. “Shuraig,” the leader of Tri-Brigade, urges the two without a place to return to, to leave the front lines and seek refuge with their allies, the “Springans.” The boy and girl begin to form a bond as they journey through unfamiliar lands, tossed around by fate. Under the starlit sky, touched by the kindness in their exchanged words, the girl gifts a name to the nameless boy.

A desolate sand sea glimmering in golden light stretches as far as the eye can see. Albaz and Ecclesia press forward through the harsh terrain, slowly forging a bond through their shared journey. But soon, their journey is cut short by a surprise attack from flying machines. These steel-bodied beings, animated with hearts of soot, are the Springans—the treasure hunters of the Great Sand Sea. By a twist of fate, Albaz and Ecclesia ran into the very group they came seeking. They board the Springans’ mobile fortress, the battleship “Exblowrer,” where they meet Kitt, a brilliant inventor and younger sister of Ferrijit. Kitt introduces them to the Springans’ leader, Sargas, and Ecclesia pleads for Albaz’s protection. But Sargas decides to present the duo with an unexpected challenge.

Having overcome their trial, "Albaz" and "Ecclesia" are accepted as comrades by the Springans. However, their joy is short-lived. The earth suddenly trembles, and the monstrous “Supreme Sovereign Serpent of Golgonda,” appears. The Springans and Ecclesia are shaken by the towering creature that dominates the horizon. Then, the branded energy emitted from Golgonda’s “Hole” causes Albaz’s power to spiral out of control. Absorbing the Hole's power, he transforms into "Albion," a crimson dragon engulfed in flames. Frenzied by each other's overwhelming power, Albion and Golgonda throw themselves into battle, dragging everyone nearby into the fray. To stop Albaz, Ecclesia rushes forward, heedless of the danger. Amid the flames of battle, the dragon and the girl meet once more. Their bond now unfolds a new chapter in the story.

“Eria,” “Hiita,” “Wynn,” and “Aussa” are each striving to become a full-fledged Spirit Charmer alongside their familiars. One day, Eria discovers a grimoire in the archives, which describes the grand Spiritual Art, "Ichirin.” The four attempt to perform it, but the imbalance of their spiritual power causes the ritual to fail. Disheartened, they follow the mysterious letters that appeared in the book, leading them to an ancient altar hidden deep within the ruins. There, the door to a mysterious trial is about to open...

To master the grand Spiritual Art "Ichirin," Hiita, Eria, Wynn, and Aussa venture deep into the old ruins to take on the trials written in the grimoire. Hiita charges through the challenges with her impressive spiritual force, but she struggles when faced with a trial requiring balancing of powers on a spiritual scale. With guidance and support from her friends, Hiita comes to realize that raw power isn’t everything, and begins to learn the delicate art of controlling her spiritual force…

The "Magical Citadel of Endymion" was one of the few cities where people could live without fear of monster, thanks to its military might and advanced magical technology. It was ruled by one of the Three Sages of the Magistus, "Endymion, the Master Magician." Having sensed the signs of the evil deity’s revival, Endymion prepares for the coming battle, yet a shadow of doubt still lingers in his heart. At his side, his companion and the moon goddess, "Artemis," quietly watches over him.