In a world ruled by magic and rigid social hierarchies, a boy named Ji-hyeon is born into a poor farming family on the outskirts of a small village. But no one knows his deepest secret—in his previous life, he was the Demon King, a feared and powerful ruler of the magical world.

After being destroyed by betrayal and holy power, his soul is reincarnated into the body of a mere human—without strength, without influence, and without anyone who remembers him.

However, even in this fragile human body, his unparalleled intelligence remains. From a young age, Ji-hyeon shows an uncanny ability to read, understand magic, and sense mana. He hides his talents, quietly growing up in obscurity, until the day he steps into a greater magical world—starting with an elite magic academy, and eventually facing ancient races, inter-kingdom wars, and entities from a forgotten era.

With sharp intellect and unwavering resolve, Ji-hyeon gradually rebuilds his power. But this time, he doesn't seek to rule the world as he once did.

He seeks to understand it. To change it. And to discover—can a Demon King truly live as a human?

The moonlight filtered through the trees, silvering the mist that coiled at their feet. Ji-hyeon narrowed his eyes, his breath still unsteady from running—but now, it was the stranger before him who took center stage.


The boy didn't move. He just stood there, like a statue chiseled from confidence. His cloak was black, with a subtle emblem sewn in silver at the collar—an unfamiliar crest that shimmered faintly with magic.


"...Who are you?" he asked, voice steady despite the tension in his chest.


The boy tilted his head slightly, eyes glinting with a sharp amusement.


"You can call me Rael," he said. "And I've been looking for you."


Rael smirked. "Because your existence is a problem."


His answer was calm—too calm—and yet, he made no move to attack. Ji-hyeon's instincts screamed caution. Not fear. But wariness.


He remembered the altar's glow. The voice that whispered: You have returned.


Rael slowly approached, his footsteps soft over the grass.


"There are many who are curious about you. But most? Most are afraid," he said. "You're not supposed to exist—not like this. Not in this era."


Ji-hyeon stiffened. "What do you mean this era?"


Rael's eyes sharpened. "You really don't know, do you?"


Then Rael reached into his cloak, slowly—and pulled out a small, metal-bound book. He tossed it gently to Ji-hyeon, who caught it out of reflex.


Its cover was marked with the same silver symbols from the altar.


Ji-hyeon's breath caught in his throat.


"I suggest you start reading," Rael said. "Before they find you first."


And without another word, Rael turned and disappeared into the mist—vanishing like a dream.


Ji-hyeon stood alone again, holding the strange book, heart pounding. He glanced at the first page.


But as his fingers touched the edges, ink began to appear—shifting and forming as though responding to him.


Chapter 31 - Chapter 31 – The Boy in the Cloak