Kelvar's market square had been a market square before the ground cracked open. Ren could tell because the stalls were still there, the ones that hadn't fallen in, their awnings in that particular state of halfway-collapsed that happened when something went wrong fast enough that the vendors didn't have time to take them down. Produce scattered across the stones. A cart on its side, wheel still turning slightly in the wind.
The crack itself ran down the center of the square, wide as two men standing abreast, and from it came a smell Ren had no word for. Deep, cold, wrong in a way that wasn't rot but was adjacent to it.
Three Guild scouts at the perimeter. Young, nervous, holding weapons in the way people held them when they knew what they were doing but hadn't done it enough times for it to be automatic. One of them stepped forward when Ren approached.
"Sir, this area is evacuated, you need to, where are you going, sir, sir."
Ren stepped around him.
"Sir."
He dropped into the crack.
The dungeon opened up below the market square into something that had no business being as large as it was. Stone passages, lit by a faint bluish light that came from the walls themselves. The cold was the interesting part. Not natural cold. Something else. Ren moved through it with his hand on his katana grip, not drawing yet, reading the geometry of the place. Two main passages, one secondary. The secondary one had fresh scrape marks along the walls, low down, something that moved on four limbs and wasn't small.
He went into the secondary passage first.
The goblin came around the corner fast, the way things moved when they were hungry and hadn't seen prey in a while, all forward momentum and teeth. Ren sidestepped it, the katana came out, and the thing went down before it finished its lunge. Clean. One motion.
He stood over it for a moment, reading the passage ahead.
Then something happened that he had no framework for.
A chime. Not external. Internal. Felt rather than heard, the way pressure changes in your ears are felt rather than heard. And then text, appearing at the corner of his vision like a notice pinned to the inside of his eye.
He stopped walking.
The text stayed.
He read it three times.
[SYSTEM NOTICE] SSS-Class Unique Title Acquired: LONELY KATANA MASTER
[PASSIVE] Solitude Accumulation: Every second spent without a Neutral or Ally entity within 50 meters, all stats increase at an accelerating rate.
[PASSIVE] Proximity Drain: Neutral or Ally entities within 50 meters reduce stat accumulation. Direct contact resets accumulated bonus to base.
[EXCEPTION] Enemy-classified entities do not trigger Proximity Drain. Enemy proximity adds bonus accumulation. Physical contact by an enemy triggers Solitary Carnage.
He read it a fourth time.
Then he put it in the category of: deal with this later. The passage ahead still had things in it.
He kept moving.
The dungeon had seventeen goblins in total, two archers positioned at the rear of the main chamber, and a boss that turned out to be a Hobgoblin Warlord, which Ren didn't have a name for yet. He just knew it was bigger than the others, wearing crude armor, and holding something that wasn't a sword but was sword-shaped enough to be legible.
The Hobgoblin saw him and its eyes moved across the empty passage behind him, checking.
"You come alone," it said. The voice was rough, like gravel being poured. Common language, basic but functional. "Just one man."
"Yes," Ren said.
The Hobgoblin looked him over the way commanders looked over opponents, measuring reach, weight, how he was standing. Then it smiled. Not the performance of a smile. An actual one. "One sword against my soldiers." It spread its arms, indicating the loose semicircle of goblins forming up around them. "You are brave or stupid. Which?"
Ren drew the katana fully.
"Come find out," he said.
The goblins rushed.
Here is the thing about fighting multiple opponents at once: most people, when faced with it, tried to defend. They watched all the incoming lines of attack and reacted to each one. That was how you died tired. Ren didn't defend. He moved through them, making each step take him somewhere useful, using their own momentum to put them in each other's way. The first three went down in under ten seconds. The archers at the back loosed their shots, but they were nervous and shooting into a crowd of their own soldiers and both arrows went wide.
The Hobgoblin watched this with the expression of something reassessing a situation.
"Stop," it told its soldiers.
They didn't listen. Two more went down.
"Stop," it said again, louder. An edge in it now.
The remaining goblins pulled back, uncertain. The Hobgoblin stepped forward itself, weapon raised, and now it wasn't performing anymore. It was serious. It moved differently than the goblins, more deliberate, with the weight of something that had survived a lot of fights by paying attention. It came at him fast, the first swing full commitment, no test in it.
Ren stepped inside the arc of the weapon rather than away from it, let it pass his shoulder by an inch, put the katana through a gap in the crude armor. The Hobgoblin stumbled. Turned. Came back with a lower swing, smarter angle, it had adjusted already.
"Not bad," it said, through its teeth. "For one man."
They were close now. Very close.
The notification chimed.
[SYSTEM NOTICE]
[Hobgoblin Warlord] Detected as ENEMY. Proximity Penalty: CANCELLED.
Active Accumulation Bonus: +500/sec.
Physical contact imminent. SOLITARY CARNAGE: STANDBY.
The Hobgoblin's fist caught him across the jaw.
The world went very loud for exactly ten seconds.
He didn't fully understand what happened in those ten seconds. But the math of it was visible afterward in the fact that the remaining goblins were no longer standing and the Hobgoblin Warlord was on the ground with three cuts across it that Ren didn't entirely remember making. His hand was shaking slightly. Not from fear. From force, the way a string shook after being plucked.
He sheathed the katana.
The dungeon was quiet.
He stood there for a moment, breathing, hand still feeling the ghost of the vibration. Then he looked at the notification text still sitting at the corner of his vision, and he thought, with the particular flatness of a man who had decided not to panic: I need to understand what just happened.
Later. He'd understand it later.
He found the stairs back up and climbed out of the crack into the late afternoon gold of the same sky he'd last seen in Japan.
Almost the same sky.
The three scouts were still at the perimeter. The one who had tried to stop him was staring.
"It's clear," Ren said.
A long silence.
"You were in there for forty minutes," the scout said.
"Yes."
"It was a D-class dungeon."
"I know what class it was now," Ren said. He did not know that forty minutes ago.
He started walking. The scouts didn't stop him this time.