The Imperial Academy's underground library was not a place for books; it was a cemetery for forbidden ideas. Located beneath the city's plumbing and the deep stone foundations of the Iron Market, the air here was bone-dry and smelled of ancient parchment and ozone. Rows of obsidian shelves stretched into the dark, containing scrolls wrapped in lead and crystals that hummed with a low, rhythmic vibration.
This was the Archive of Errors the place where the Guild stored the records of everything that didn't fit the Seven Elements.
Elara led Atsu Yuta through the narrow aisles, her amber staff acting as the only light in the suffocating blackness. Atsu walked with his hands in his pockets, his detached gaze scanning the titles. His middle-part curtain wolf cut was messy, covered in the fine red dust from the fight in the plaza. He felt out of place among the "sacred" knowledge of the mages, a living glitch in a room full of settled answers.
"Why bring me here?" Atsu asked, his voice echoing flatly against the obsidian. "If the Guild finds out an Academy student is showing a Type 5 anomaly their secret files, they won't just expel you. They'll erase you."
"They have to find us first," Elara said, stopping before a heavy bronze pedestal. "And I told you, Yuta the Guild is lying. They tell the world that magic is a perfect, divine gift. But these records show the truth. Magic is a system. And every system has bugs."
She placed her hand on a crystal sphere atop the pedestal. The room groaned, and a section of the wall slid back to reveal a single, lightless chamber. Inside, a floating orb of dark glass spun slowly.
"This is the record of the last 'Cursed Blood,'" Elara whispered. "Three hundred years ago. He didn't die in battle. He reached zero."
Atsu stepped into the chamber. The "数字" tattoo on his cheekbone began to throb, a sharp, stinging heat that made his vision flicker. He looked at the glass orb. Inside, he didn't see text or images. He saw lines of red light, pulsing in a pattern that looked like a heartbeat or a countdown.
Data Link Established: Historical System Analysis.
The analytical side of Atsu's mind the "Numbers" logic began to process the orb's energy. He saw the previous anomaly's combat logs. It wasn't like his own frantic survival. It was graceful. The previous user didn't just spray blood; they left it behind.
"He used Delayed Constructs," Atsu muttered, his apathetic eyes widening slightly.
He saw a mental image of the previous user spraying a fine mist into the air, then walking away. Seconds later, when the enemy stepped into the mist, it solidified into a thousand needles simultaneously. The blood didn't just react; it waited.
"It's a logic trap," Atsu realized. "You don't fight the opponent. You fight the space they're about to occupy."
"That's how you solve your 'Reset' problem," Elara said, her voice urgent. "If you can set traps before you hit OFF, you're never truly vulnerable. You're always active, even during the delay."
Atsu looked at his right hand, the cross tattoo glowing faintly in the dark. He closed his eyes and tried to envision the mechanic. He didn't want a wall. He wanted a sleeper.
Recreation Loop: ON = Spray Blood (Mist). OFF = [RESERVED].
He raised his hand. Instead of a violent hiss, a soft, almost silent vapor escaped his pores. It settled onto the floor of the archive like a light morning fog. It looked harmless, a thin red veil over the stone.
"Now, wait," Atsu whispered.
He waited five seconds. Then, he thought of a single word: Trigger.
The red mist on the floor suddenly spiked upward, turning into rigid, razor-sharp blades of blood that pierced the air with a metallic clink. If a mercenary had been standing there, they would have been skewered before they could even draw a breath.
The effort drained his Mana Reserve significantly, the glow beneath his skin dimming. But the calculation was complete. He had expanded the system.
"You're a fast learner," Elara said, but her expression wasn't one of pride. It was one of clinical fascination. She was watching him like a scientist watches a chemical reaction that might explode. "But the 'numbers' don't like it when you grow. Look."
Atsu looked at his reflection in the obsidian shelves. The "数字" tattoo had shifted again. The number was smaller. The lines were more intricate, spreading toward his temple like tiny, black veins.
"The more I use it, the faster it counts down," Atsu said, his voice cold.
"It's the price of optimization," Elara replied. "Every time you refine the system, you move closer to the Auto-Weapon State. You're becoming more efficient, but you're becoming less... human."
Atsu pulled his hair over his eyes, shielding the tattoo from her gaze. He felt a sudden, sharp pang of isolation. He was in a library filled with the history of people like him, and every single one of them had ended the same way: as a tragedy of physics.
A loud, metallic chime echoed through the archive. It was a high-frequency tone that made Elara drop her staff, clutching her ears in pain.
"A Guild resonance pulse," she gasped. "They found the breach. They're sealing the exits!"
Atsu didn't panic. He felt the cold, systematic calm of the Iron Market fight return. He looked at the red blades he had just created. They were still standing, solid and sharp.
"Elara," Atsu said, his voice detached. "Can your Academy magic open a hole in the ceiling?"
"I... I can try, but the stone is reinforced with anti-kinetic charms."
"Then don't use force," Atsu said, his apathetic eyes locking onto hers. "Just disrupt the mana flow. I'll do the rest."
He didn't wait for her to agree. He felt the stored energy in his chest the blood of the thief and the mercenary and funneled it all into his hands. He wasn't going to build a wall. He was going to build a drill.
As the doors to the archive began to glow with the golden light of the Guild's breaching spells, Atsu Yuta turned his back on the history of his kind. He wasn't going to be a record in a dark room. He was a living error, and errors were meant to be spread.