Allen, a bastard of the House of Weiss in the North, was long dismissed as a magicless good-for-nothing. However, a shattered crystal left behind by his mother awakened the "Eye of the World"—a gift that allows him to perceive the fundamental runes underlying all magic. Fleeing his ancestral castle, he joins forces with an elven ranger named Eira and embarks on a quest to collect the eight "Instruments of Creation." The Theocracy, convinced that he is the "Key to the World" foretold in prophecy, pursues him relentlessly. As Allen uncovers the truth of his own origins, he learns that he is the son of Lyra—the last elven princess, who was executed by the Theocracy. After surviving countless clashes between warring factions, he reaches the Tower of Fate, where he glimpses the harrowing truth: the entire continent is, in fact, a colossal cage constructed by the gods. Ultimately, Allen gathers all the Instruments, rewrites the foundational laws of reality, strips away the power of magic, and establishes a new order in the North—one where humans, elves, and the undead coexist as equals.
