The Banquet of the Demon Lords—Walpurgis—was held in a dimension beyond the reach of the mortal sun. It was a space of absolute silence and crushing gravity, where the very walls were woven from the concentrated magicules of the participants. For centuries, this table had been the ultimate authority of the world. But today, the seating arrangement was about to be permanently altered.
Kaito walked three paces behind Rimuru as they entered the grand hall. While Rimuru wore his elegant black-and-silver tactical coat, Kaito had abandoned traditional clothing entirely. His body had become a masterpiece of "Starmetal Fluidity"—a humanoid shape of shifting, liquid silver that left a trail of faint stardust in its wake.
[Notice: Presence of 'True Demon Lords' detected. Guy Crimson, Milim Nava, Ramiris, Dagruel, Dino, Luminous Valentine, Leon Cromwell, and Clayman. Threat Level: Varied. Recommendation: Maintain 'Celestial Record' at maximum processing speed.]
"Remember the plan, Kaito," Rimuru whispered, his face a mask of calm.
"I know," Kaito replied, his voice a melodic chime. "You handle the politics and the 'justice.' I'll handle the data-stream. If anyone tries to interfere with a spiritual attack, they'll find themselves trapped in an infinite archive loop."
As they took their seats, the air grew thick with hostility. Clayman, the "Marionette Master," stood at the head of the table, his face twisted into a mask of faux-grief. He began his rehearsed speech, accusing Rimuru of murdering the Orc Lord for sport and Kaito of being an "artificial spirit" designed to disrupt the balance of the forest.
"And so," Clayman concluded, his voice trembling with theatrical rage, "I propose that these upstarts, these 'Tempest' pretenders, be purged for the sake of the Octagram's dignity!"
The room was silent. Guy Crimson, the oldest and strongest of the Demon Lords, leaned back in his throne, his crimson eyes shifting toward the silver spirit standing behind the blue-haired boy.
"The shiny one," Guy said, ignoring Clayman entirely. "You aren't just a spirit. I can see the threads of the World Language woven into your core. What are you?"
Kaito stepped forward, his silver eyes meeting the Primordial Red's gaze without flinching. "I am the Fourth Primordial Echo, Kaito Tempest. I am the Archive of this world's past and the architect of its future. As for Clayman's accusations..."
Kaito snapped his fingers.
[Notice: Replicating Archive Entry: 'The Marionette's Treachery'. Initiating Global Projection.]
The center of the table was suddenly filled with a three-dimensional, high-definition replay of Clayman's secret meetings. The Demon Lords watched as Clayman laughed about burning the Ogre village, as he manipulated the Orc Lord, and as he struck Shion during the invasion. The evidence was undeniable; it was a record pulled directly from the magicules of the events themselves.
Clayman's face went pale. "That... that's a fabrication! A spirit's trickery!"
"The magicules don't lie, Clayman," Rimuru said, standing up. "You've played your last card. Now, I'm calling the bluff."
Guy Crimson grinned, a terrifying sight. "Very well. A trial by combat. Rimuru vs. Clayman. And since the 'Archive' here seems so confident, why don't we let him handle Clayman's secret weapon?"
From behind Clayman, the "Marionette Master" summoned his last hope—a mind-controlled Milim Nava. The pink-haired girl lunged, her fist glowing with enough power to crack the planet.
"Kaito!" Rimuru shouted.
"I've got her," Kaito said.
He didn't fight her with force. As Milim's fist approached, Kaito's body expanded into a massive, silver mirror. Milim struck the surface, but instead of an explosion, she was pulled into a localized "Data Realm."
Inside this mental space, Kaito's Ultimate Skill: Mnemosyne worked at the speed of light. He wasn't attacking Milim; he was analyzing the "Crazed Clown" curse Clayman had placed on her.
[Notice: Curse identified. Structure: Emotional Feedback Loop. Solution: Overwrite with 'Truth Archive'.]
Kaito projected the memory of the honey, the memory of their first meeting, and the pure, unadulterated bond they shared. He flooded her mind with the records of her own happiness. The red haze in Milim's eyes shattered like glass.
Outside, in the real world, Kaito and Milim reappeared. Milim wasn't attacking; she was laughing, a jar of honey (which Kaito had conveniently pulled from his storage) already in her hand.
"Milim! Why aren't you killing them?!" Clayman shrieked.
Milim looked at him, her expression shifting from playful to murderous. "Because my besties are way better at making snacks than you are at making threats, you creepy doll!"
With the support of the other Demon Lords now firmly behind them, the end was swift. Rimuru used Beelzebuth to consume Clayman—not just his body, but his very soul, ensuring he would never return.
Guy Crimson stood up, clapping his hands slowly. "Impressive. It's been a long time since the Octagram had a shake-up this entertaining. Rimuru, Kaito... the seat is yours."
"We're renaming it," Rimuru said, looking at the assembled lords. "The Octagram. Eight Demon Lords. And the Forest of Jura is now a sovereign territory under the protection of the Twin Stars."
Kaito stood beside his brother, his silver form glowing with a soft, triumphant light. He looked at the window of the hall, peering through the dimensions back toward their home. He saw the Goblins, the Dwarves, the Ogres, and the humans of Tempest waiting for their return.
He had started this journey as a dying man in a white void. He had asked for three wishes, hoping just to survive. But as he looked at the world he had archived and the family he had built, he realized he had received far more.
[Notice: Reincarnation Protocol fully integrated. The 'Fourth Primordial' has achieved his true purpose. The record is complete.]
"No," Kaito whispered to the voice in his head, a small smile touching his silver lips. "The record is just getting started."
The two brothers walked out of the hall, ready to lead their nation into an era of peace that would be whispered about for ten thousand years.