
Alexander was a hero—brave, skilled, and devoted to ending the long, bloody war between humans and demons. Together with his trusted companions, he led a daring mission to the heart of enemy territory. Their goal: kill the Demon King and bring peace to the world once and for all.
But things didn’t go as planned.
The Demon King’s power was far beyond anything they had imagined. In a matter of moments, Alexander’s party was wiped out, their hopes crushed under the might of darkness. Alexander died that day, thinking he had failed forever.
Yet, death was not the end.
Two years later, Alexander opens his eyes again—but this time, not as a human. He has been reincarnated as Zilbagias, the newborn son of the Demon King himself. Though his body is different, his memories remain. He still remembers everything—his mission, his fallen friends, and the burning desire to defeat evil.
Now, he finds himself living among the very people he once swore to destroy.

7th Demon Prince Jilbagias, The Demon Kingdom Destroyer Plot
Determined not to waste this second chance, Alexander—now Zilbagias—vows to take down the demonic kingdom from the inside. But being the Demon Prince is not as easy as it sounds. Everyone around him sees him as a royal heir to the throne, not a hidden human hero. He must be careful with every word and action, or risk exposing his true identity.
To survive and reach his goal, Zilbagias must train harder than ever before. He must pretend to be the perfect demon prince, all while secretly investigating the kingdom’s power structure, allies, and weaknesses. Along the way, he meets demon generals, other nobles, and even beings who begin to question the war just like he once did.
But it’s not all black and white. As he spends more time in the demon realm, Zilbagias begins to see cracks in his old beliefs. Are all demons truly evil? Is peace really only possible through destruction? Or could there be another way?
Reincarnated as the Demon King’s Son is a thrilling fantasy tale filled with action, secret identities, inner conflict, and political intrigue. It tells the story of a hero who fell in battle, only to rise again as the enemy’s heir—and who must now navigate a dangerous new life while holding onto the hope of peace.
With the world watching and danger at every turn, Zilbagias must decide: is he still Alexander the hero… or something entirely new?

What is the release date for 7th Demon Prince Jilbagias, The Demon Kingdom Destroyer Chapter 19?
7th Demon Prince Jilbagias, The Demon Kingdom Destroyer Chapter 19 will come out around July 9, 2025, for the following regions.
- Pacific Daylight Time [West Coast]: 8:00 AM PDT (July 9, 2025)
- Central Daylight Time [Central America and Canada]: 10:00 AM CDT (July 9, 2025)
- Eastern Daylight Time [East Coast]: 11:00 AM EDT (July 9, 2025)
- Greenwich Mediterranean Time [Britain]: 3:00 PM BST (July 9, 2025)
- Philippines Standard Time [Philippines]: 11:00 PM PST (July 9, 2025)
It will be available to read on July 10, 2025, for these regions.
- Korean Standard Time [Korea]: Midnight KST (July 10, 2025)
- Japanese Standard Time [Korea]: Midnight JST (July 10, 2025)
- Australia Eastern Daylight Time [Australia]: 02:00 AM AEDT (July 10, 2025)
Where to read 7th Demon Prince Jilbagias, The Demon Kingdom Destroyer Chapter 19?
7th Demon Prince Jilbagias, The Demon Kingdom Destroyer Chapter 19 will be available to read on Comic Gardo.