After dying in a tragic truck accident, 17-year-old high schooler Ryuji Kurogane finds himself reborn as a baby in a poor orphanage located in the rural outskirts of Veralis, one of the four kingdoms of the Elarion Continent. This new world is filled with martial arts fueled by Ki and spellcraft powered by Mana. However, every being is born with an affinity for only one energy — Ki or Mana.
But Ryuji is different.
Shortly after awakening his awareness in this world, he discovers a mysterious soul-bound artifact called the Eclipse Core, attached to his very soul. This ancient divine relic grants him the unprecedented ability to produce both Ki and Mana, defying the natural laws of the world. Even more, it allows him to master any form of martial or magical discipline in mere days — a feat that takes years for even the most talented warriors or mages.
Though blessed with this incredible power, Ryuji is haunted by a painful mystery: Why was he abandoned at birth in such a desolate place? Who were his real parents, and why would they leave someone with such divine potential behind?
With nothing but a strange birthmark resembling the Eclipse Core and vague dreams of a woman's voice, Ryuji sets out on a journey to uncover the truth about his origins and the true purpose of the artifact bound to his soul.
As he grows, trains, and ventures beyond the borders of Veralis, he learns of the eight great kingdoms spread across the Elarion and Darneth Continents, each known for unique fighting styles and powerful legacies. From the dragon-riding warriors of Skarnheim, to the shadow sorcerers of Nytheria, and the elemental monks of Zundra, Ryuji must face powerful foes, make allies, and uncover ancient secrets that tie his past to the very fate of this world.
But there's more at stake than just family.
Dark forces are also seeking the Eclipse Core — and Ryuji soon learns that his soul is not the only one carrying the mark of forgotten gods.
Now, with destiny chasing him and danger closing in, Ryuji must rise beyond what anyone thought possible — not just to protect himself, but to shape the future of both continents.