Grey runs down the stairs too fast, heart full of hope, while his mother Martha calmly fixes his hair. The arena is packed, and the test stone has already crowned Jonas with a purple-grade fire affinity, a miracle in Red City. When Grey's turn comes, the energy from the stone circles his body three times and returns. The elder makes him repeat the test, then announces the result that will define his childhood, zero affinity. The crowd's pity and scorn hit him like a thunderbolt. Jonas barely glances at the fading boy; the Academy representatives dismiss him as a cripple. Grey spends three years in the forest, breaking his body with workouts, because Martha convinces him to at least stay strong. He is abandoned by friends, mocked by the city, and only Martha's relentless love keeps him from drowning. She tells him that what makes you different makes you special, and the words refuse to leave him. Then one night, heat consumes him, he faints, and his body devours elemental particles like a black hole. His rough skin turns fair, his palm becomes smooth, and Martha finally reveals the secret, his father placed an ancient pearl inside him as an infant, and the scroll beside it promised that after fifteen years he would wield all elements. Grey's despair becomes a roaring fire. He starts the brutal circulation cycles, each one more painful than the last, and after months of agony he completes the tenth cycle. The next heartbeat changes his world. A vision appears in the chaos space, a majestic man who calls himself the Chaos God, and tells Grey the pearl has not merely given him an affinity, it has handed him the power of elemental fusion and the chaos element itself. Grey wakes with a pink-grade lightning talent, which feels like cosmic mockery. But he knows something no one else in the empire knows, his talent can grow, and the world that laughed at him will soon choke on its own scorn. The city is already buzzing because Grey has announced he will retake the test in three months.

Three months become the fuel for a stunning reversal. Grey enters the chaos space again and again, trying to comprehend lightning, failing for weeks until a storm gives him a real epiphany, lightning is speed, destruction, and a beautiful dance across the sky. The grade shifts from pink to orange, and a visit to the lightning mountain nearly drowns him in elemental essence. In that mountain, he accidentally touches the earth element, feeling the heartbeat of trees and the solidity of soil. On test day, the same elder who once declared him zero affinity is forced to announce the impossible, Grey, lightning element, purple-grade talent, and earth element, pink-grade talent. The arena explodes. The representatives who pitied him now fight over him. Jonas, the purple-grade star, feels inferior for the first time. Derek, the bully who tormented Grey, turns pale. Grey chooses the Lunar Academy because Chris, the representative from that academy, was the only one who once offered him a kind word. He leaves Red City with his mother's blessing, and Martha secretly prepares to reunite with his father. At the edge of a forest, Chris reveals their ride, a majestic Griffin named Brown, a legendary beast that makes Grey realize the academy and the world are far larger than the small city that humiliated him. Behind them, Martha watches with tear-filled eyes as the boy who was called trash walks into a new life. The city gate fades, but the shock is not finished. The Lunar Academy will soon discover that Grey's cultivation speed is a monster, and that the trick played on him with a false special technique will only make him stronger. Brown spreads her wings, takes off into the air, and carries him toward a destiny that will soon shake the entire empire.

Inside Lunar Academy, Grey discovers that the superior technique Chris gave him is exactly the same scroll every new student receives. The deception should have ruined him, but his body is packed with stored lightning and earth essence from the lightning mountain, so he blazes through the Collection and Fusion planes in one year, reaching the peak of the Fusion Plane and then the Arcane Plane. The instructors are stunned. Blake, the Lightning Hall head, becomes his reluctant champion, Chris reappears, tastes Grey's cooking, and claims him as a personal student, teaching him arrays and inscription. Grey's daily schedule becomes a war against time, physical training at dawn, elemental techniques, array practice in the hidden valley, and comprehension in the chaos space. When the Academy tournament arrives, he crushes his early opponents, then faces the stone golem of Damian, a rare summoner. Grey takes a beating but systematically destroys the regenerating golem until Damian collapses. He finally loses only to Alan, a dual elementalist with wind and fire, and proves he is already the third strongest student in the academy. Then the empire increases the competition quota from fifteen to twenty-five, and the Lunar Academy announces a ranking tournament for the remaining spots. The hidden reason is a one-hundred-year-old trial land at the border of the Magical Beasts Forest, a portal that will send geniuses under twenty into a dangerous realm full of treasures and death. Before the capital competition, Grey asks Chris to fly him back to Red City, only to find his mother gone and strangers living in their home. The ache of loss fuels him. On the capital stage, he dominates his first opponent so brutally that students from Starlight Academy take notice, and a dark figure with a dagger nearly kills him after a night of drinking. Blake and Chris respond with terrifying fury, Chris slapping a Starlight instructor so hard that the man may not survive, revealing Chris's true power and the hidden steel beneath Lunar Academy's gentle reputation. Now Grey stands on the threshold of the trial land, unaware that an Azure empire family has already mapped its secrets and expects to harvest them.

Grey's first true mission takes him to Misty Mountain, where bandits, wind wolves, conflagration apes, and a red lizard push him past the limits he knew. He robs the robbers, harvests beast cores, and stumbles into a treasure war worth more than gold. A wounded man carrying a natural fruit collapses at his feet, and Grey takes the fruit for himself, absorbing enough pure essence to jump from the early stages to the Sixth stage of the Arcane Plane. When mercenaries surround two girls from the Idris Academy, Grey fights until a hidden power suddenly erupts, turning his eyes blue and coating his body in lightning. He floats into the air, calls down bolts of lightning from a darkened sky, and annihilates the entire mercenary squad without memory of doing it. The price is unconsciousness and a blazing mystery, the pearl inside him is not just a passive cheat, it is a sleeping calamity with its own will. He leaves the mountain with a new wind element, a blue-grade lightning talent, and a warning from Chris to reveal nothing. Back at the Academy, he attempts elemental fusion for the first time, creating an unstable orb that explodes with power beyond the Arcane Plane, nearly killing him. He buries the secret and learns to inscribe midair symbols during the flight to the Capital. When the trial land opens, he enters with Klaus, Reynolds, and Alice, and the group discovers a world where one day of cultivation equals fifteen outside. They battle indestructible metal warriors in a floating palace, race rivals for treasure boxes, and split apart to grow stronger. Grey hunts alone in the eastern trial land, barely escaping a horde of rabbits, stealing a pitch-black egg from a castle while chased by enemies, and awakening his earth grade to a level that lets his armor endure Ninth-stage strikes. Storm clouds gather over Reynolds when it starts raining and he is cornered by Starlight Academy killers. Alice races toward the scream, Grey follows the lightning, and somewhere in the northern trial land a sealed door pulses with light that draws every vulture in the realm. Behind the door waits a treasure tied to the darkness element, and hidden agents of the Azure empire have a map, an agenda, and no intention of leaving witnesses.