Han Dae-sung was just an ordinary middle schooler on his way home when he suddenly found himself trapped in hell. At first, he wandered in despair, but soon resolved to survive and fight his way back to Earth. Hell turned out to be like a brutal game—holographic RPG-style interfaces appeared before him, complete with status windows, skills to learn, and items to collect. Despite facing deadly beasts and countless near-death experiences, he endured and grew stronger. Decades passed—ten, fifty, then eighty years—until he finally defeated the Demon King, the ruler of hell, and claimed his throne.

When a message appeared—[*Would you like to return to Earth?*]—he didn’t hesitate. Hell was nothing but a wasteland of fire and mindless monsters. But when he awoke in a Seoul hospital, he discovered only ten years had passed on Earth. His body had been in a vegetative state the entire time.

As he underwent rehabilitation, the system from hell reappeared before him—[*The advent quest has arrived.*] Accepting its challenges, he recovered at an inhuman speed, his frail body regaining the strength forged over eighty years in hell. But just as he thought he could finally live in peace, the world had changed.

The day he fell into hell, Earth was invaded by otherworldly beings, plunging it into chaos. To combat the monsters, humanity created *Hunters*—specialized exterminators. Though Dae-sung vowed never to fight again, he couldn’t ignore the threat to his family.

Determined to protect them, he embraced his power, traveling between Earth and *Pantheon*—a realm mirroring hell’s horrors. One by one, he unlocked hell’s abilities, and when enemies threatened his loved ones, he showed them the true meaning of terror.

The boy who escaped hell had become its absolute ruler—and now, he would unleash its fury upon those who dared harm his world.