Demonic Dragon: Harem System

Strax did not wait for the discussion to end.

The instant Monica confirmed that the Northern barriers had received the warning, he was already walking out of the containment chamber. There was no shout, no explosion of aura, no dramatic promise capable of cracking walls. There was something worse. There was silence. That precise silence of a dragon who understood where the enemy had tried to touch and decided the world would have a few seconds to get out of the way.

Samira followed him without asking.

Frieren came right behind, carrying a box of talismans, vials, and runic chains as if she had just walked out of a laboratory on fire and decided that was an acceptable routine. Ouroboros walked beside her, pale but steady. Monica remained in the chamber only long enough to issue three more orders through the communication crystals.

"Reinforce every internal shadow in the mansion. No one sleeps without a talisman until further notice. Send a message to Rogue: double night patrols. Yennifer stays in Asgard and hunts any distortion."

"Lady Monica," an assistant asked, almost breathless, "and if there is another attack on the southeastern routes?"

Monica looked at him with terrible calm.

"Then Asgard holds until Strax returns."

The assistant swallowed dryly.

"Yes, Lady Monica."

When Monica reached the courtyard, Strax had already assumed his draconic form.

The sky above Asgard trembled.

The snow around him evaporated before touching his scales, and the courtyard runes glowed at maximum alert. Samira transformed immediately after, spreading her enormous wings and giving a low roar, not out of anger, but to warn the city itself that something was happening. Frieren fastened the box of instruments into an improvised runic saddle on Samira’s back, while Ouroboros climbed up with an expression far too concentrated for someone about to fly through a storm.

Strax looked once at Monica.

She raised her hand, holding the blue crystal connected to the North.

"Mercedes is keeping the girl awake. But sand is appearing in the room."

Strax’s draconic head lowered only slightly.

"Hold Asgard."

"Go."

He opened his wings.

The impact of his flight tore the accumulated snow from the courtyard, spreading it in a white wave over the mansion walls. Samira came right behind, cutting through the sky with force. The two draconic forms rose so quickly that the guards in the towers only saw their shadows pass before the sound arrived.

The journey to the North felt far too long.

Strax knew that route. He had flown to Mercedes’s kingdom before. He had seen frozen mountains, white forests, lakes trapped beneath ice, and castles raised like blades against the sky. But now every kilometer felt like an offense. Every cloud in the way felt slow. Every gust of wind felt useless. He wanted to fold space with his own claws, rip the distance out of the world, and fall directly into the room where the little one was crying.

"Strax," Frieren called, using magic to project her voice through the wind.

He did not answer, but he listened.

"Do not say her name near any manifestation. Not in anger, not to calm her."

His jaws closed tightly.

"I know."

"If she is a living anchor, the name is part of the contact surface. The more emotion attached to the name, the stronger the echo."

Samira growled.

"You are telling him not to call his daughter by name when he arrives?"

"I am telling him to keep her alive."

The silence that came afterward was heavy.

Strax did not argue.

That said everything.

The Northern mountains appeared on the horizon shortly afterward, wrapped in dense, cutting clouds. The cold there was different from Asgard’s. Older. Deeper. The snow did not merely fall from the sky; it seemed to be born from the air itself. Mercedes’s castle appeared between dark peaks, surrounded by bluish ice walls and narrow towers, all illuminated by cold crystals pulsing in alarm.

But something was wrong.

A line of dark sand cut through the snow before the gates.

It was not large.

Not yet.

But it was impossible.

The sand crawled over the ice like an open wound, forming thin veins that stretched toward the walls. Northern guards attacked with spears, magic, and frozen blades, but every time they cut a line, it broke into dust and reappeared a few meters ahead, searching for shadows.

Worse than that, creatures were emerging from the snow itself.

Not whole beasts.

Parts.

Claws of black sand, small golden eyes opening in plates of ice, bodiless mouths trying to bite soldiers’ shadows. It was as if the desert had not sent an army, but a memory of itself, trying to learn how to exist in that frozen land.

Samira descended first.

Her draconic form struck the ground before the gates, crushing a line of sand beneath her claws. The impact sent a wave of snow upward, and Frieren jumped from her back before the dust even settled, rolling once on the ground and already opening talismans in the air.

"Do not step on contaminated shadows!" Frieren shouted. "High light! High light now!"

The Northern mages hesitated for less than a second.

Then Mercedes spoke from inside the castle, her voice echoing through every tower by magic.

"Obey."

White crystals lit up on the walls.

Light exploded over the field, reducing natural shadows to short, hard, almost nonexistent stains. The lines of black sand recoiled like worms exposed to fire. Strax landed in the center of that illuminated field, and the world seemed to shrink around him.

White Fire came first.

Not in an uncontrolled explosion.

In circles.

Thin lines of white flame ran across the ground, drawing borders between the sand and the soldiers’ shadows. Where the fire touched the dark veins, the sand screamed without sound, writhing before turning into pale glass. Strax advanced, claws tearing into the ground, and each of his steps erased one more attempt by the desert to cling to the North.

Samira took the left line, striking incomplete creatures with the greatsword as soon as she returned to human form. She did not try to cut sand. She cut the space around the shadows, obeying Frieren’s instructions, crushing the connections before they could form bodies.

"This is disgusting!" Daniela shouted, having arrived with another group right behind Tiamat. She dropped onto a sand claw trying to reach an archer and split it apart with condensed mana. "I hate that the sand has strategy now!"

"It is learning," Frieren said.

"Do not say that!"

"But it is."

Ouroboros stood before the gates, hands raised and eyes completely black. Invisible threads trembled around her, extending into the castle, across the field, and toward something very far away in the southeast. She did not attack. She did not move. She only held.

And it looked costly.

Strax noticed immediately.

"How long?"

Ouroboros answered through clenched teeth:

"Little."

Then came the scream.

Not from a soldier.

From inside the castle.

Strax turned before the sound even ended.

The eastern tower window exploded outward in a rain of ice and black sand. A massive shadow surged from it like a serpent, carrying at its center a small blue glow trapped by dark threads. Mercedes appeared right behind it, flying over a platform of ice, her eyes shining with pure fury. In her arms was the girl, awake, crying, but conscious. The shadow had not taken her body. It had tried to take something else.

The shadow’s outline stretched into the sky.

And a golden eye opened within it.

Strax roared.

It was not an ordinary roar.

It was a declaration of war.

The sound crossed the valley, shattered sand formations, knocked down incomplete creatures, and made even the crystals on the walls vibrate. Mercedes pressed the girl against her chest, creating a sphere of ice around them both, but the shadow remained attached to the blue glow it was trying to tear away.

"Strax!" Mercedes shouted. "I cannot cut it without hurting her!"

"Do not cut!" Frieren shouted. "Anchor!"

Mercedes understood.

The Monarch of Ice drove her free hand into her own chest, pulled mana from her spiritual crown, and planted a stake of blue ice in the air before the girl. The shadow pulled. Mercedes pulled back. The sky between them distorted, as if two forces were trying to decide who owned the right to call a life by name.

The girl cried, but she did not sleep.

"Father!" she shouted.

Strax almost answered with her name.

Almost.

His own tongue burned before the word could leave.

Instead, he said:

"Look at me!"

The girl opened her wet eyes toward him.

"Do not listen to the sand. Listen to my voice."

The shadow trembled.

The golden eye fixed on Strax.

For the first time, the presence on the other side seemed irritated.

The voice crossed the field, no longer as a warning, but as hunger.

"Anchor."

Strax smiled.

It was a horrible smile.

"Wrong."

He opened both hands.

White Fire in one.

Black Ice in the other.

Then he struck his palms together.

The impact did not explode outward. It imploded. A point of white and black light was born between his hands, compressed, stable only because Strax held it with enough force to crack his own inner scales. The technique he had trained in the courtyard, the unstable fusion that had almost destroyed the arena, now formed before everyone.

Frieren widened her eyes.

"He is going to use that here?"

Samira smiled.

"Finally."

"That could destroy half the wall!"

"Then he had better aim properly."

Strax aimed.

The white-and-black point stretched into a thin spear, silent and impossible. It was not fire. It was not ice. It was controlled destruction in the shape of a line. He did not throw it at the girl, nor at Mercedes, nor at the entire shadow. He aimed at the invisible thread between the blue glow and the golden eye.

The spear crossed the air.

For an instant, nothing happened.

Then the thread appeared.

A black chain, thin as hair and enormous as a road, connecting the shadow to the distant thing in the desert.

Strax’s spear cut.

The sky screamed.

The shadow split in two.

Mercedes fell to her knees on the ice platform, hugging the girl to herself while the blue glow returned to the child’s chest like a small frightened star. The child coughed, cried, and clutched her mother’s clothes tightly. Mercedes closed her eyes for a single second, only one, and when she opened them, there was a promise of death in them.

But the shadow did not disappear.

The severed half fell onto the field before the castle, twisting until it formed an incomplete body. Tall, thin, skinless, made of sand, shadow, and golden eyes that were far too small. It was not the King Beneath the Sand. It could not be. It was only an extension. A remote hand. A finger through the crack.

Even so, its presence made soldiers retreat.

Samira advanced.

The creature turned its head.

She smiled.

"Finally something I can hit."

The greatsword descended.

The blade passed through the body of sand, but the shadow opened around the strike and tried to climb up the metal. Samira released the sword at once, kicked the handle away, and struck with a fist wrapped in draconic mana. The impact hit the shadow before it could reform the body, scattering black sand in every direction.

Daniela appeared from the flank and cut three eyes that emerged on the creature’s torso. Cassandra came from the other side, creating mana needles that pinned shadows to the illuminated ground. Frieren ran between them, throwing talismans that exploded in cold light.

"Do not let it gather!" she shouted. "Each eye is an attempt at focus!"

The creature opened its mouth.

No physical sound came out.

But everyone heard inside their heads:

"Name."

Several soldiers fell to their knees.

One of them began to say his own name without realizing it.

Albedo appeared behind him and covered his mouth firmly.

"Quiet now, dear."

Lithara appeared elsewhere, grabbing two guards by the collars and dragging them out of the mental line.

"Do not give anything to the ugly thing."

Strax walked toward the creature.

Each step made the field tremble.

Mercedes landed behind him with the girl in her arms, wrapped in ice. Strax did not look back, but spoke:

"Take her inside."

Mercedes answered in an icy voice:

"No."

"Mercedes."

"She is awake. I am with her. And that thing tried to touch our daughter."

Strax was silent for half a second.

Then he nodded.

"Then stay behind me."

"I am not a child."

"Today everyone stays behind me."

Mercedes almost argued.

But the creature moved.

Far too fast.

It crossed half the field in a blur of shadow, ignoring Samira, Daniela, and Cassandra, going straight for Mercedes and the girl. Strax stepped in front and grabbed the thing by the face with his hand covered in Black Ice. The shadow tried to seep between his fingers. White Fire rose up his arm and closed the path.

The creature trembled.

The main eye opened in its chest.

And Strax saw the desert again.

The crater.

The sphere.

The colossal eye.

This time, looking directly at him.

The voice came slowly.

"Dragon..."

Strax squeezed.

"You are too far away to speak with me."

The creature tried to smile without a mouth.

"For now."

Strax smashed its face against the ground.

Black Ice spread in a perfect circle, trapping every grain of sand, every shadow, every eye. White Fire came right after, burning not matter, but the connection. Frieren threw three runic chains over the circle, Ouroboros cut an invisible thread with both hands, and Mercedes raised a wall of blue ice behind the girl, preventing any remaining echo from reaching her.

The creature began to come apart.

But before vanishing, the voice returned, weak and satisfied.

"I remember... the cold."

Strax froze.

The creature turned to black ash over the ice.

The field went silent.

For several seconds, no one moved.

Then the girl sobbed quietly against Mercedes.

Strax turned immediately.

All the threat, all the fury, all the weight of a dragon disappeared from his face for a fraction of a second. He approached slowly, as if any sudden movement could break the little calm she had left.

"You are here," he said, without using the name. "Look at me. Only at me."

She obeyed, trembling.

"He spoke to me."

Strax knelt before her and Mercedes.

"I know."

"He wanted to know my name."

Mercedes tightened her arms around her.

Strax extended his hand, but stopped before touching. He waited. The girl, still crying, released one hand from Mercedes’s clothes and held his fingers.

Strax’s expression changed.

It did not become softer.

It became definitive.

"He will not have it."

Snow began falling over the field again.

But now, among the white flakes, small grains of black sand still slowly vanished into the frozen ground.

Frieren, a few meters behind, looked at the ash trapped in the runic circle.

"That was only a projection."

Samira picked up the fallen greatsword, cleaning the sand from the blade.

"A projection almost tore out her soul."

"Yes."

Daniela took a deep breath, still looking at the point where the creature had vanished.

"Then when he comes for real..."

No one finished the sentence.

Strax stood.

His gaze returned to the southeast, even though the mountains blocked any view of the desert.

"He will not come."

Mercedes looked at him.

"You are going to close the door."

Strax closed his hand around the small fingers still holding his.

"No."

Frieren raised her eyes.

"No?"

Strax smiled.

Cold.

Terrible.

"I am going to find who is opening it."