The flight through the Kiten Dungeon was a surreal experience. Lencar moved through gravity-defying architecture—staircases that spiraled sideways, waterfalls that flowed upward, and rooms where the floor was made of floating islands.
He avoided fights. When he saw a Mana Golem lumbering down a hallway, he used [Mist Magic] (harvested from Fluss) to turn invisible and slip past it. When he encountered a wall of fire traps, he used [Ice Magic] (from Heath Grice) to freeze the mechanisms.
He was a master key, possessing the answer to every riddle the dungeon threw at him.
Finally, after thirty minutes of navigating the labyrinth, he arrived at a massive pair of double doors.
They were easily twenty feet tall, made of a dark, unknown metal, and etched with glowing blue runes. The mana pressure radiating from behind them was immense.
"The Treasury," Lencar said, hovering before the gates.
In the original timeline, this is where the Mars fight would happen. Or where the Golden Dawn would make their stand. But right now, it was silent.
Lencar drifted closer. He didn't try to push the doors. They were sealed with magic far beyond his current ability to break without causing a cave-in.
"Knock knock," Lencar whispered.
[Spatial Magic]: [Short Jump]
POP.
He appeared inside.
The sight took his breath away.
It was a cavernous hall, illuminated by glowing crystals embedded in the ceiling. The floor was piled high—mountains of gold coins, jewels the size of fists, ancient armors, scrolls, and weapons radiating magical auras.
"Incredible," Lencar breathed, landing softly on a pile of gold coins. The metallic clink echoed in the silence.
This was enough wealth to buy a small country. Enough to ensure his parents in Sosei lived like kings. Enough to give Rebecca and her siblings a castle.
But Lencar ignored the gold for a moment. His eyes were drawn to the back of the room.
There, embedded in a pedestal of raised stone, surrounded by a pile of rusted scrap metal and debris, was a sword.
It wasn't glowing. It didn't radiate mana. In fact, to his mana sense, it looked like a hole in the world—a dead spot where magic simply ceased to exist.
The Demon-Dweller Sword.
Lencar walked toward it. The air grew colder the closer he got. The "chill" wasn't temperature; it was the anti-magic aura repelling the mana in his body.
He stood before the sword. It was rusted, chipped, and ugly.
"Asta's second sword," Lencar murmured. "The one that can absorb and redirect magic. The connector."
He reached out.
His hand trembled slightly. This was a major deviation. If he took this, Asta wouldn't find it. Asta wouldn't have it for the fight against Mars. Asta wouldn't have it to borrow Noelle's magic.
But, Lencar reasoned, if I leave it, the Diamond Kingdom might get it if Mars wins. Or maybe Asta finds it anyway. But I am here now. And a weapon this powerful... I cannot leave it to chance.
"I am a Heretic," Lencar reminded himself. "I break the rules."
He grabbed the hilt.
ZZZT!
A shock ran up his arm. It wasn't electricity; it was his own mana recoiling. The sword was rejecting him. It felt heavy—impossibly heavy. It was trying to drain the magic from his hand to feed itself.
"Greedy thing," Lencar gritted his teeth.
He didn't have Anti-Magic energy to wield it properly like Asta. But he had immense physical strength from his Mana Forging.
He gripped it tighter, his muscles bulging. He didn't try to flow mana into it; he just used raw, brute force.
"UP!"
With a grunt of exertion, he wrenched the sword from the stone.
Debris scattered. Lencar held the heavy, rusted blade in his hand. It felt dead. It felt wrong. But it was his.
"I can't use this in battle," Lencar realized immediately. "If I hold it, it drains my mana skin. It weakens me. It's a double-edged sword for a mage."
He needed to store it. He looked around for a scabbard, but there was none.
He tried to put it in his spatial bag (a small magical tool he bought in Nairn). The bag rejected it. The anti-magic disrupted the spatial enchantment of the container.
"Problematic," Lencar muttered. He wrapped the blade in a thick, non-magical leather cloth he had brought, which seemed to dampen the effect slightly. He strapped it to his back. It was heavy, a constant physical weight.
Now, he looked at the rest of the room.
The gold. The jewels. The magical artifacts.
He grabbed a handful of gold coins and shoved them into his pocket. He filled the two sacks he brought.
It wasn't enough. He had barely made a dent in the smallest pile.
"I can't carry this," Lencar realized, frustration gnawing at him. "I have the haul of a lifetime, and I'm limited by carry weight."
He looked at his grimoire.
He possessed [Spatial Magic]. He possessed the knowledge of coordinates and dimensions.
In this world, Spatial Magic was mostly used for transport (portals) or offensive attacks (spatial erasure like Langris). Spatial Storage—an inventory—was a rare, high-level application. It required creating a stable pocket dimension and anchoring it to a physical object or coordinate.
"I have the components," Lencar analyzed, pacing back and forth on the gold. "I understand the geometry. I have the mana capacity of a Stage 4 mage. I have the Soul Gem of a spatial user."
He sat down in the middle of the treasure hoard.
"I am not leaving until I can take this with me," Lencar decided.
He opened his grimoire to a blank page.
He began to calculate.
To create a storage space, he needed to fold space in on itself, creating a bubble outside of normal reality. Then, he needed to create a permanent gateway—an interface.
He visualized a box. Not a box made of wood, but a box made of distance. A box where the "inside" was bigger than the "outside."
He channeled his mana. The air in front of him rippled. A small black hole formed.
He tried to push a gold coin into it.
CRUNCH.
The spatial pressure crushed the gold coin into dust.
"Too aggressive," Lencar noted. "The space is unstable. It's crushing the contents."
He needed to stabilize the interior. He used concepts from [Mist Magic]—diffusion and suspension—to create a "soft" interior for the void. He used [Ice Magic] concepts to "freeze" the dimensions of the pocket so it wouldn't collapse.
Attempt 2.
He formed a new rift. He tossed a gemstone inside. It floated there, unharmed.
"Progress."
He tried to close the rift and reopen it.
The rift vanished. When he tried to reopen it, the gemstone was gone. Lost to the void between dimensions.
"Anchor failure," Lencar sighed. "I need to tie the space to something."
He looked at his hand. He was wearing the signet ring he had taken from Silas, the bandit spatial mage. It was a focus item for spatial magic.
"The ring," Lencar decided. "I will anchor the pocket dimension to the ring."
He focused all his mental energy on the silver band. He etched the mana formula into the metal itself, weaving his spell into the ring's structure.
[Spatial Creation Magic]: [Void Vault]
The ring glowed with a dark, violet light.
Lencar held his hand over a pile of gold. He pushed his mana into the ring.
A distortion field opened—a circular window into a dark, quiet space.
Lencar reached out and touched the pile of gold.
SCHWOOP.
The gold coins didn't crush. They didn't vanish. They were sucked smoothly into the distortion, disappearing into the ring.
Lencar checked the connection. He could "feel" the gold sitting inside the pocket dimension, weightless and static.
He willed a coin to appear. It dropped into his palm instantly.
"Success," Lencar grinned, fatigue forgotten. "An infinite inventory."
He stood up. He walked through the treasury like a vacuum cleaner. He swept up piles of gold. He grabbed ancient grimoires. He took magical tools. He stripped the room of anything that looked valuable or dangerous.
He left the treasury empty, save for the dust.
He looked at the empty pedestal where the Demon-Dweller Sword had been.
"I have the loot. I have the sword. I have the spell," Lencar said.
He checked his pocket watch. He had been in the dungeon for six hours. It was night outside.
"Time to go home," Lencar said.
He didn't walk back. He had the map.
[Spatial Magic]: [Long-Range Coordinate Shift]
He vanished from the treasury, leaving the Kiten Dungeon empty and silent, waiting for a hero who would find nothing but an empty room.