Reborn as the Overpowered Demon King’s Son
Renji Kurogane was an otaku and martial arts prodigy with a simple dream—to become an all-powerful demon prince surrounded by a massive harem of beautiful women. Ever since he was a kid, he fantasized about being an unstoppable demon lord, crushing his enemies and having demon princesses and goddesses swoon at his feet. But in reality, Renji was just a goofy, carefree high schooler who loved anime, games, and martial arts.
One day, during a school trip with his classmates, fate took a dark turn. Their bus was involved in a horrific accident, and everyone onboard was killed. While his classmates were summoned to a human kingdom to become heroes and fight against the Demon King’s forces, Renji’s destiny took a different path.
When Renji opened his eyes, he found himself lying on a luxurious bed in a dark palace, surrounded by powerful demon generals, and sitting before him was a tall, imposing figure with crimson eyes and horns—Lucifer, the Demon King.
“Welcome back, my son.”
Renji had been reborn as Renji Lucifel, the youngest son of the Demon King. But this wasn’t some ordinary rebirth—Renji quickly realized that he wasn’t just strong… he was absurdly overpowered. His demonic energy surged like a storm, and his body overflowed with magical power greater than even the Demon King himself. He could bend reality with a flick of his hand and instinctively wield powerful dark magic, advanced martial arts, and swordplay without even trying.
Even the gods, who stood above creation itself, were wary of his existence. When Renji casually shattered a divine barrier meant to restrain him on his first day awake, the gods started to panic. His father, Lucifer, and his older siblings—who had spent centuries honing their strength—were left speechless as Renji effortlessly outperformed them without even knowing how strong he was.
But despite his overwhelming strength, Renji didn’t lose his personality. He remained the same goofy, carefree otaku, cracking jokes and flirting with demon princesses while casually wiping out threats to the demon kingdom. His playful attitude and easygoing nature left the demon nobles both awestruck and bewildered.
Things became even more complicated when Renji learned that his classmates—his friends from his previous life—had been summoned as heroes to oppose the Demon King’s forces. While the human kingdom prepared for war, Renji had to decide where his loyalties lay. Should he stand by his new demonic family or reconnect with his old friends?
But Renji wasn’t too worried about the conflict—after all, he could crush both sides if he wanted to. His real problem was the growing attention from the most powerful and dangerous women in existence:
• The cold and dangerous Demon Princess of Ice starts blushing whenever Renji teases her.
• The proud Dragon Queen challenges Renji to a duel, only to immediately propose marriage when he wins.
• The mysterious and seductive Goddess of Chaos appears in his bedroom, asking if he’d like to “create a new world” with her.
• Even the cold-hearted Demon King himself seems a little too impressed by Renji’s strength.
“Wait… why is the Goddess of Love sitting on my lap?”
“The Demon Queen wants to make me her king?!
“Father… can you please tell the Succubus Queen to stop trying to sneak into my room?”
Renji dreamed of becoming a powerful demon prince with a massive harem—and now that dream has become his reality. But with the fate of the world resting on his shoulders and every goddess, princess, and demon queen vying for his attention, Renji’s greatest challenge might just be figuring out how to manage his new life.
“Well… this turned out even better than I imagined. Time to enjoy the perks of being the strongest!”
