Flashback: The Battle in the Silence
The snow did not fall in Valerion; it descended like a funeral shroud, heavy and indifferent.
In the secluded clearing on the outskirts of the academy grounds, the air had reached a level of pressurized stillness that made the lungs ache.
Lucien Vael's eyes, usually as sharp and cold as a frozen lake, were now wide with an emotion he had never truly felt: absolute, unadulterated shock.
He looked down at his chest, where a hand had bypassed his defensive wards as if they were made of mist.
It was Kuro's hand, wreathed in a surging, violet-black mana that seemed to vibrate with the resonance of a dead god.
There was no sound of a strike—only the wet, rhythmic thud of blood hitting the pristine snow.
As Kuro withdrew his hand with a clinical lack of effort, Lucien collapsed.
The pure white ground stained a violent crimson, the heat of the demon's blood causing the frost to hiss.
Beside him, Selvaria Nocturne stiffened, her breath catching in a throat that had suddenly gone bone-dry.
As a former military strategist for the Demon Empire, she had seen thousands of deaths, but she had not even perceived the movement that had ended her comrade.
"...Impossible..." she whispered. She clutched a deep, ragged gash on her side—a secondary strike she hadn't even felt until now.
She fell to her knees, her emerald eyes trembling as they locked onto the silver-haired boy standing before her.
"I knew it... Kuro... You're not human. You're... a calamity that even the Abyss would fear."
Kuro did not answer immediately. He looked down at his hand, then at the dying woman, his violet eyes reflecting nothing but a cold, analytical detachment.
When he spoke, his voice was soft, possessing a gentle cadence that was more terrifying than a roar.
"You're mistaken, Selvaria-sensei. I am just a student trying to maintain his marks in Class B."
"Wait..." Selvaria gasped, her strength failing.
"Before I return to the void... can I ask you... about my younger sister? About Rei?"
Kuro's eyes widened for a fraction of a heartbeat—the only crack in his Perfectly Average Mask all evening.
He looked toward the academy dormitories, where he knew Rei was likely sleeping, her soul anchored by the piece of the Shadow Core he had gifted her.
"I see," Kuro murmured, his tone shifting to one of genuine understanding.
"So you are the sister who was taken to serve the Hero. Don't worry about Rei Nocturne. I will not let anything—god, hero, or demon—reach her. But you chose to stand as a piece on the First Hero's board. And on this board, pieces that threaten the center must be removed. Rest in peace, Selvaria Nocturne."
With a movement so swift it appeared to be a glitch in reality, the shadow of the boy expanded.
Selvaria's body fell lifelessly beside Lucien's.
Kuro stood in the center of the carnage for a long minute, the falling snow already beginning to bury the evidence of his work. He wasn't smiling. He was simply waiting for the world to react.
---
The Embers of the Past
As their consciousness faded into the grey between life and death, the memories of the fallen lingered like smoke over a dying fire.
Lucien Vael had been born to a noble demon family in the Northern Domain, a place where the sun was a myth and strength was the only currency.
His life had been one of rigorous, joyless discipline. He had mastered the blade and the forbidden arts not for glory, but for survival within the Demon Empire's brutal hierarchy.
He was a man who wanted nothing more than to be left in the quiet of his own thoughts, yet his competence had made him a target for recruitment.
Selvaria's history was far heavier. The Nocturne lineage had once been the most respected of the high-demon families, serving directly under the Great Demon Lord Az'Zulgar.
But Selvaria had lived with a secret bitterness that had rotted her soul from the inside out.
When she was young, she had overheard that her parents had been executed by the Great Demon Lord for the "treason" of attempting to negotiate a peace treaty with humans.
She believed her younger sister, Rei, had perished in that same purge. Powerless against the Demon Lord and the high-tier champions who had slaughtered her kin, Selvaria had allowed herself to be "saved" by the First Summoned Hero.
He had promised her the strength to enact her revenge, and in exchange, she became his most lethal strategist.
She and Lucien had met as children in the Empire's training grounds, rivals who became comrades in a world that viewed them only as tools.
"Lucien," she had once asked him during a rare moment of respite, "are demons weapons... or puppets? Which would you choose to be?"
Lucien had looked at his scarred hands and forced a small, sad smile.
"I would be a weapon, Selvaria. But by my own choice. Never someone else's."
They had spent decades believing they were finally the ones holding the hilt. They never realized that the First Hero saw them only as expendable pawns to be moved across the human kingdoms.
Unaware that Rei had survived and was now the very follower of the boy who had just killed them, Selvaria died with the bitter irony of having hunted the only person who could have reunited her family.
Lucien's final thought, as his spirit dissolved, was of Kuro's face—that mask of total, clinical emptiness.
That boy... he carries the darkness of a deity, he realized. He is worse than the Dark Magic God Umbyas could ever hope to be.
---
The Schemes of the First Hero
Hundreds of leagues away, within a fortress of white stone and gold that sat in the heart of the Demon Empire, the First Summoned Hero sat before a pool of liquid light.
He watched as two sparks within the pool—representing Lucien and Selvaria—flickered and vanished into black smoke.
He showed no dismay. No grief for the hands he had lost. Instead, his lips curled into a thin, shark-like smile.
"So, the Darkness Lord has finally decided to move a piece of his own," he chuckled, his voice echoing through the vaulted hall.
"Good. Very good. The game was becoming far too predictable."
A soldier in enchanted plate armor knelt at the base of the dais.
"My Lord, two of our primary infiltrators are dead. The mission to monitor the academy has been compromised. Shall we release the Assassin?"
From the shadows behind the Hero's throne, a figure stirred. It was a girl, neither fully human nor fully demon—a half-beast with ears like a brown wolf that twitched at every sound.
A long, furred tail gave a single, lethal flick against the stone floor. Her amber eyes burned with a cold, predatory light, her presence so silent it seemed to erase the air around her.
The Hero raised a hand, his eyes never leaving the pool of light.
"Not yet. She is my final card, the one the 'Unknown God' didn't write into his Book of Fate. Let the Darkness Lord believe he is winning. Let him clear the board of the demons and the corrupt priests. I will wait until he is at the height of his triumph... and then I will end him."
The wolf-girl bowed her head, her silence a promise of the violence to come.
---
The Great Demon Lord's Recognition
In the obsidian fortress of the Demon Empire, a different kind of meeting was taking place.
The Great Demon Lord Az'Zulgar sat upon his throne of bone, listening as his generals delivered the grim statistics of the Demon Hunt Day.
"Over a hundred of humans are missing from Valerion, my Lord," a general reported, his voice trembling.
"278 confirmed dead, including our high-tier spies, Selvaria and Lucien. The wounds on the bodies... they are unlike anything we have seen from the human knights."
The Great Demon Lord's crimson eyes narrowed into lethal slits. He remembered the resonance from eight years ago, the signature that matched the Dark Magic God Umbyas.
"It wasn't the humans," the Demon Lord stated, the sheer weight of his voice causing the crystal ornaments in the hall to shatter.
"Nor was it a rogue demon faction. This is the handiwork of Shujin, the Darkness Lord. He has returned to claim the throne of the shadows."
The room fell into a suffocating silence. Even the most battle-hardened demon lords felt a shiver at that name. They were the apex predators of Velgrith, yet they suddenly felt like prey.
---
The Interrogation of Kuro Velgrith
Days later, the royal capital of Valerion was a city of whispers and bandages. Kuro lay on a narrow cot in the infirmary of the Elmyria Temple.
His wounds were shallow—carefully calculated to look like he had barely escaped a struggle—but his arms were wrapped in professional-grade medical linen.
Two high-ranking soldiers from the Ironwood Royal Guard stood by his bedside, their faces etched with suspicion.
"Kuro Velgrith, you are the sole survivor. Every other students and instructors are dead or missing. Tell us what happened."
Kuro stirred, his eyelids fluttering as if he were fighting through a fog of trauma.
He utilized his Soul Veil magic to suppress his presence, making him look like nothing more than a terrified, mediocre boy.
"I saw them..." he whispered, his voice a practiced, trembling rasp.
"Lucien and Selvaria-sensei... they were fighting demons. When they noticed me, Sensei yelled for me to run. I tried to help... I really did... but I was too slow. More demons arrived from the shadows."
His voice broke, a perfect imitation of a boy whose heart was breaking—not a boy whose heart had already cracked a lifetime ago in Tokyo.
"They were killed right in front of me. A demon saw me... I tried to fight back, but I was no match. I only survived because I tripped into a drainage ditch and hid beneath the snow. I don't even know how I'm still alive."
The soldiers exchanged troubled looks. They had seen Kuro's academy records—his "Perfectly Average" midterm scores of exactly 50% in every subject.
To them, it was impossible that this weak, unremarkable boy could have survived anything more than luck.
"...We understand," one soldier sighed, his expression softening into pity.
"You're a lucky boy, Kuro. We'll record your statement. Get some rest. The kingdom has lost enough potential today."
Word arrived from the mages outside. The bodies of Selvaria and Lucien had been recovered. The wounds were jagged, chaotic—matching the profile of high-tier demon infighting. The investigation was concluded before it had truly begun.
---
Doubts and Divine Radiance
High in the royal palace, Princess Alisa Ironwood stood by her window, watching the sunset bleed over the city.
She had been kept within the palace's inner wards during the attack, but the reports coming in were inconsistent with everything she knew of demon biology.
"...Demons killing each other?" she murmured, her fingers tracing the glass.
"Why would they target their own strategists? Why would they kill Selvaria and Lucien?"
Her emerald eyes narrowed. A sharp thought pierced her chest—a memory of the Master of Shadows who had saved her in the forest years ago.
She wondered if the boy in the infirmary was more than he seemed.
"...Was it because of Kuro? Or was he just a witness to a tragedy I don't yet understand?"
She shook her head. She had no evidence, only a growing intuition that the False Peace of her father's kingdom was being dismantled by a hand she couldn't see.
---
On the streets below, the atmosphere shifted.
The priests and holy knights of the Elmyria Temple moved through the wreckage like a tide of white and gold. They prayed for the fallen and purified the alleyways with waves of artificial light.
At their head was the Temple's Cardinal, a man whose presence felt as heavy and airless as the Goddess's own realm.
The Cardinal's eyes suddenly stopped. He looked across the plaza at a boy standing amidst the rubble—Ryuto.
"Young man..." the Cardinal said, his eyes narrowing as he studied the faint, golden aura shimmering unconsciously around the Hero of Light.
"...Such pure radiance. Tell me your name."
"I-It's Ryuto," the boy stammered, feeling the weight of the Cardinal's gaze.
The Cardinal offered a faint, chilling smile.
"Ryuto... The Goddess has blessed you with a purity of power I have not seen in a century. You must come with me. We have much to discuss regarding the 'calamity' that has visited our city."
From a distance, Saria Elcrest gasped, her analytical mind already cataloging the implications of the Church taking an interest in the new student.
Princess Alisa looked on with a mixture of surprise and dread.
Ryuto glanced uncertainty toward the infirmary, where he knew Kuro was resting.
"Kuro... what should I do? Is this the justice you were talking about?"
He received no answer. In the infirmary, Kuro "slept," already calculating the next move on a board that had just become much more dangerous.
---
✦ To be continued...