Chapter 1: The Master of Death*

The battle was finally over.

Harry Potter stood amidst the ruins of what had once been Hogwarts, the bodies of his friends and foes strewn about in a grim display of the cost of victory. Voldemort was dead, his shattered soul torn apart once and for all. The Elder Wand, once a source of unimaginable power, lay at Harry's feet, broken in half. The Resurrection Stone had long been lost, and the Invisibility Cloak had been stored away. Harry was now the sole wielder of the powers that had once belonged to the fabled Master of Death.

He had won.

Yet, victory came with a hollow sense of loss. He had spent years fighting, protecting his friends, and leading the wizarding world to peace, but as the dust settled, the realization began to creep in. While the world healed, Harry did not. Days turned into months, then years, and Harry began to notice something that no one else seemed to. He wasn't aging.

At first, he dismissed it as a quirk of his magical abilities, a side effect of the powerful spells he had used in the war. But as his friends grew older—Ron, Hermione, and even Ginny—and as they started families and lived their lives, Harry remained the same. He watched as their faces wrinkled and their hair turned gray, while his own reflection stayed unchanged, forever frozen at the age of 18.

The burden of immortality, of being the Master of Death, slowly became unbearable. Harry had never sought eternal life, yet here he was, unable to age, unable to die. His friends began to pass away, one by one, leaving him alone. And finally, when the last of them was gone, Harry knew he had to make a choice.

It was time to leave. He could not stay in a world that had moved on without him.

One night, Harry made his way to the Ministry of Magic. Hidden deep within the Department of Mysteries was the Veil of Death, a portal said to lead to the afterlife. It was a place shrouded in mystery and fear, where only the brave—or the desperate—dared to venture.

Standing before the Veil, Harry felt an odd sense of calm wash over him. This was the path he was meant to take. He had lived long enough, and it was time to move on. Without hesitation, he stepped through the Veil.

When Harry awoke, everything had changed.

He was no longer the Harry Potter who had fought and defeated Voldemort. He was no longer the Boy Who Lived, nor the Master of Death. He was someone else entirely, yet the memories of his past life still lingered in his mind.

He was reborn in a new world—a world where devils, angels, and fallen angels fought for power and dominance. A world where the supernatural was not hidden from the eyes of mortals but instead thrived in plain sight. And in this world, Harry was no longer a human. He was something more.

Harry Potter was now the eldest son of the Potter Clan, one of the most powerful and ancient pureblood devil families. The Potter Clan was feared and revered, known for its unrivaled magical prowess and political influence within the Underworld. As the heir to this noble house, Harry had responsibilities, and with them came great power.

But something else was different. The title of "Master of Death" was not left behind in his previous life. In this new world, it had followed him, entwined with his very soul. As the Master of Death, Harry's power was unlike any other devil's. His control over life and death made him a figure of immense potential in the supernatural world. The ancient magics that governed the Underworld recognized his unique position, for death was not something that even devils could escape. And with his bloodline as a devil, his connection to death only grew stronger.

Yet, despite all the power he had, Harry was still a child—just ten years old. His new family doted on him, and he was surrounded by warmth and affection. He had two younger sisters, both of whom adored him and looked up to him as their protector. His mother and father, proud of their powerful son, ensured that he received the finest training in magic and combat from a young age.

But Harry's closest companion was Rias Gremory, the youngest daughter of the prestigious Gremory Clan. The Gremorys were another influential devil family, known for their power and close ties to the Underworld's ruling class. Rias and Harry were practically raised together, their families being close allies. As children, they spent nearly every day in each other's company, forming an unbreakable bond.

Rias was just as headstrong and fiery as Harry remembered her from his studies in the previous life. She had the same crimson hair, the same determination, and the same desire to carve her own path, independent of the expectations of others. Though she was only a year younger than Harry, Rias always tried to keep up with him, eager to match his strength.

To Rias, Harry was her best friend, her confidant, and her closest ally. But as they grew older, it became clear that their bond was destined to be something more. There was an undeniable attraction between them, one that neither could ignore. As devils, they understood the concept of arranged marriages, of forging alliances through matrimony. But for Rias and Harry, it was different. Their connection was not one of duty or political convenience; it was something deeper.

As the years passed, Harry's power continued to grow. His devil blood mixed with his mastery over death gave him access to abilities that others could only dream of. He could manipulate the very essence of life and death, control necromantic energies, and even bend time to his will. But it wasn't just raw power that set him apart—it was his wisdom, carried over from his previous life.

Harry understood the intricacies of the supernatural world in a way that others did not. He had seen the horrors of war, the cost of violence, and the weight of responsibility. As he trained and prepared for the future, he knew that the time would come when he and Rias would be forced to confront the challenges of the Underworld. There were factions vying for control, alliances to be forged, and enemies to be defeated.

But for now, Harry and Rias were simply two young devils, navigating their way through a world of power and politics. They would stand together, just as they always had, and face whatever the future had in store.

As the Master of Death and the heir to the Potter Clan, Harry's journey had only just begun. And with Rias by his side, the future looked brighter than ever.

To be continued...*