The demon lord is my girlfriend

The Streets of Blastos Kingdom

The scarlet sky of the Underworld stretched endlessly above, its crimson hues bleeding into the horizon like a painter's brushstroke. The air was thick with the scent of sulfur and ash, yet it carried a strange, almost electric energy that made the hairs on Eden's neck stand on end.

The streets of Blastos Kingdom were alive with activity—demons of all shapes and sizes bustled about, their laughter and chatter filling the air. Some had horns curling from their heads, others had tails that flicked lazily behind them, and a few even had wings that shimmered faintly in the dim light. Despite their monstrous appearances, they moved with a sense of normalcy, as if this were just another day in their strange, otherworldly lives.

Eden walked slowly, his light green eyes scanning the scene before him. His white hair, cut in the style of a medieval knight—short but layered, with slightly longer strands framing his face—caught the faint glow of the scarlet sky. His white skin, touched with just enough warmth to lean toward a bronzed hue, hinted at time spent under the sun. He stood tall, his fit frame moving with the ease of someone accustomed to physical exertion, yet his posture carried a casual air, as if he didn't fully belong in the grandeur of this world.

I'm called Eden Salizard, he thought to himself, his mind drifting back to the events that had brought him here. Just a normal 19-year-old boy. Nothing special.

The sound of children's laughter pulled him from his thoughts. He turned to see a group of young demons running through the streets, their tiny claws scraping against the cobblestones. They chased each other, their laughter ringing out like bells, their eyes glowing with innocent joy. Eden couldn't help but smile.

"They're cute," he murmured, watching them play. "Even if they're demons, they're still young, innocent kids."

He stopped walking and tilted his head back, gazing up at the sky. The scarlet expanse was unlike anything he'd ever seen in his world, yet there was a strange beauty to it. It was as if the heavens themselves were alive, pulsing with an otherworldly energy.

"This scarlet sky… it's different," he said softly, "but it's beautiful. Like my world's sky, in a way."

He laughed quietly, the sound barely audible over the noise of the street. Then he looked down at his hands, turning them over as if searching for something.

"The legendary dragon rider?" he muttered, his voice tinged with disbelief. "I'm just a normal guy. I'm not the main character of this world's story. I've always been the side character… until that day."

Two Weeks Earlier: The Summoning

The memory flashed in his mind like a scene from a dream. He was back on the rooftop of Draco's Kingdom castle, the wind whipping through his hair as he stood in the center of a glowing magical circle. The air had been thick with energy, the kind that made your skin tingle and your heart race. A girl with long red hair and piercing blue eyes had stood before him, her hands pressed to her chest as she chanted an ancient spell.

"Wake up, my hero," she had sung, her voice melodic yet commanding. "We need you to save us. You are the strongest in the world. Wake up—it's your time to shine like a diamond. Our hopes lie in your hands."

The magical signs etched into the stone floor had begun to glow, their light growing brighter and brighter until it was almost blinding. Six spectral figures had appeared, their forms shimmering like ghosts as they circled the glowing symbols. Eden had recognized them instantly—the six ancient kings of the Underworld, their faces solemn and their eyes filled with an otherworldly wisdom.

"In the name of Draco's flame," the girl had continued, her voice rising in intensity, "help me find what I need to find!"

And then, in a flash of light, Eden had appeared in the center of the circle, his school uniform rumpled and the first volume of Dragon Ball manga clutched in his hand. The spectral figures had vanished, and the glowing symbols had faded, leaving only the girl and Eden standing on the rooftop.

She had opened her eyes, her face lighting up with joy. "The spell… it worked!"

Eden had blinked, his mind struggling to process what had just happened. "What… what's going on?" he had stammered, looking around in confusion. "I was in my room, waiting for the first episode of Dragon Ball to start. I waited three years for this adaptation, and now… this?"

He had glanced down at the manga in his hand, then back at the girl. "This is a prank, right? You're messing with me."

But the girl had only smiled, her blue eyes sparkling with excitement. "You're in the Underworld," she had said, bowing slightly. "And you… you are our legendary dragon rider."

Eden had stared at her, his mind reeling. "If this is a prank, it's not funny. I don't have time for this."

But the girl had been serious. "The king is waiting for you," she had said, her voice firm. "Come with me."

---

The Girl in Maid's Clothes

As they walked through the castle, Eden couldn't help but notice the girl's unusual appearance. She was dressed in a maid's uniform, the fabric a deep blue that matched the color of her skin. Her long red hair cascaded down her back in loose waves, and her blue eyes glowed faintly in the dim light. But what truly caught his attention were the small, delicate scales that shimmered along her arms and neck, and the faint outline of wings folded neatly behind her back.

"You're… a dragon?" Eden asked, his voice filled with awe.

The girl smiled, her sharp teeth glinting in the light. "Yes. My name is Wa. I serve King Draco."

Eden's eyes widened. "So dragons and demons live together here?"

Wa's expression darkened slightly. "Not exactly. Dragons and demons coexist in the Underworld, but we are not allies. There is… tension between our kinds. Something happened in the past, something that drove a wedge between us. But that is a story for another time."

Eden frowned, his curiosity piqued. "What happened?"

Wa shook her head, her blue eyes filled with a mixture of sadness and resolve. "It's not my place to tell you. Perhaps one day, you will learn the truth. But for now, you must focus on your role as the legendary dragon rider."

---

The King's Hall

When they finally reached the king's chamber, Eden was struck by the sheer grandeur of the room. The hall was massive, its high ceilings supported by towering obsidian pillars that glowed faintly with golden runes. The walls were adorned with tapestries depicting dragons in flight, their scales shimmering with threads of silver and gold. The floor was made of polished black stone, so smooth that it reflected the flickering light of the torches that lined the walls.

At the far end of the hall, atop a raised dais, sat King Draco. The dragon was enormous, his green scales glistening like emeralds in the dim light. His massive body was coiled around a throne made of black stone, its surface etched with intricate carvings of dragons and flames. The throne itself was a masterpiece, its back rising high above the dragon's head, adorned with jagged spikes that resembled the peaks of a mountain. At the base of the throne lay a pile of treasures—golden coins, glittering jewels, and ancient artifacts that hummed with power.

King Draco's white beard flowed down his chest like a river of snow, and his golden eyes glowed with an ancient wisdom. His voice echoed in Eden's mind as he spoke, deep and resonant.

"Welcome, legendary dragon rider," the king said, his gaze fixed on Eden. "I have been waiting for you."

Eden swallowed hard, his heart pounding in his chest. "I… I don't understand. Why me?"

The dragon smiled, revealing rows of sharp, glistening teeth. "Because you are the one foretold in the prophecy. You are the one who will unite the dragons and demons, and bring peace to the Underworld."

Eden shook his head. "But… I'm just a normal human. I don't know how to fight, or lead, or… any of this."

King Draco reached out with one massive claw, touching Eden's chest. A surge of energy coursed through him, filling him with a strange, newfound strength.

"Being a normal human does not mean you are not a hero," the dragon said, his voice filled with conviction. "This is my gift to you. Now, you must begin your journey."

---

Present Day: The Encounter

Eden stood in front of a weathered mailbox, its surface scarred with scratches and dents. The scarlet sky above cast an eerie glow over the cobblestone street, painting the world in shades of crimson and shadow. The air was thick with the scent of sulfur, and the distant hum of demonic chatter filled the silence. Eden's silver eyes scanned the horizon, his mind still reeling from the events of the past two weeks. He sighed, running a hand through his messy white hair.

"I just want to go home," he muttered under his breath. "Back to my boring routine. Back to my world. I'm just a normal student. I don't belong here."

But then, King Draco's words echoed in his mind, as clear as if the dragon were standing beside him. Being a normal person doesn't mean you're not a hero.

Eden clenched his fists, his jaw tightening. "Easy for you to say," he muttered. "You're a giant dragon. I'm just… me."

Before he could dwell on it further, a sudden weight crashed into him from behind, sending him sprawling to the ground. His face hit the cobblestones, the impact jarring his teeth. Pain shot through his shoulder as he rolled onto his back, his silver eyes flashing with anger.

"What the—?!" he shouted, scrambling to his feet. "Are you blind?!"

The boy who had knocked him over—a lanky figure with messy black hair and wide, panicked eyes—stumbled to his feet, his chest heaving. He wore a tattered hoodie and jeans, both stained with dirt and ash. His silver eyes, dull and distant, flickered with fear as he glanced over his shoulder.

Before Eden could demand an explanation, a deep, guttural growl echoed through the street. The sound was low and menacing, like the rumble of distant thunder. Eden's blood ran cold as he turned to see a massive demon stepping out of the shadows.

The creature was enormous, its dark skin glistening like polished obsidian under the scarlet sky. Its muscles bulged with raw power, each movement sending ripples across its massive frame. Its eyes glowed a menacing red, like twin embers burning in the darkness, and its lips curled into a cruel smile, revealing rows of jagged, yellowed teeth. Its claws, long and razor-sharp, scraped against the cobblestones as it advanced, leaving deep gouges in the stone.

Eden's breath caught in his throat. He had seen demons before, but none like this. This one radiated danger, its very presence suffocating.

The boy—Naomi—stared at the demon, his face pale with fear. He took a step back, his hands trembling.

Eden didn't have time to think. He stepped in front of Naomi, his silver eyes locked on the demon. His hands clenched into fists, though they trembled slightly.

The demon chuckled, a deep, rumbling sound that sent shivers down Eden's spine. "Two humans for the price of one," it sneered, its voice like gravel grinding against stone. "How fortunate."

With a roar, the demon lunged, its claws slashing through the air with terrifying speed. Eden barely had time to react. He grabbed Naomi by the arm and yanked him out of the way, the demon's claws missing them by inches. The force of the attack sent a gust of wind rushing past them, stirring up dust and debris.

Eden's heart raced as he scrambled to his feet, pulling Naomi with him. "Run!" he shouted, his voice cracking with urgency.

But the demon was faster. It lunged again, its massive form moving with unnatural speed. Eden shoved Naomi to the side, diving out of the way just as the demon's claws slammed into the ground where he had been standing. The impact sent shockwaves through the street, cracking the cobblestones and sending chunks of stone flying.

Eden rolled to his feet, his chest heaving. His mind raced, searching for a way out, but there was none. The demon was too fast, too strong. He had no weapons, no powers, nothing but his wits and his will to survive.

The demon turned to face him, its red eyes glowing with malice. "You're a persistent one," it growled, its voice dripping with contempt. "But this ends now."

Eden's hands clenched into fists, his silver eyes blazing with defiance. He didn't know who the boy was or why the demon was after him, but he couldn't just stand there and do nothing.

The demon lunged again, its claws descending toward Eden with terrifying speed. Eden braced himself, his heart pounding in his chest. This was it. This was the moment that would define him.

As the demon's claws closed in, Eden's mind flashed with a single thought:

This is the worst.