They took the seven AM KTX.
Han-Ho. Min-Seo. The old man. Wei Junhao.
Moru on Han-Ho's shoulder. Kjor on his other shoulder. River in the bag pocket.
Han-Ho had brought kimbap.
Tuna mayo. Four of them. One for each person. Plus extra honey butter chips that Kjor had requested specifically for the train because train chips were a new category of chip consumption that Kjor had identified as requiring dedicated exploration.
The KTX platform at Seoul Station at six fifty AM was doing its early morning things.
People moving with purpose. The specific energy of a train platform where everyone knows where they are going and is focused on getting there.
The old man stood on the platform and looked at the train.
At the long white body of it.
At the sleek lines designed for minimum resistance at high speed.
At the KTX sitting in the station with the patient energy of something that knew exactly how fast it was going to go and was comfortable with that knowledge.
"It is very long," said the old man.
"Twenty cars," said Han-Ho.
"And it goes—"
"Three hundred kilometers per hour at peak speed," said Han-Ho.
The old man looked at the train.
"In my world," said the old man. "At the Life and Death realm I can move at approximately—"
"I know," said Han-Ho. "The train is slower."
"I was not going to say that."
"What were you going to say."
The old man was quiet.
"I was going to say," said the old man. "That at Life and Death realm I move through space using qi. I feel the qi of everything I pass. Mountains. Rivers. Dragon Veins. People." He looked at the train. "On this train I will move through space as a passenger. Without using qi. Without feeling anything. Just moving."
Han-Ho looked at him.
"That is different," said the old man.
"Yes," said Han-Ho.
"I have not been a passenger in ten thousand years," said the old man.
"Everything is extraordinary," said River, from the bag pocket.
The old man looked at the bag pocket.
"Yes," said the old man. "I think it is."
They got on the train.
The KTX left Seoul Station at seven AM precisely.
The old man was in the window seat.
Han-Ho was next to him.
Min-Seo and Wei Junhao were across the aisle.
Wei Junhao had his face pressed against the window before the train reached its operating speed.
Min-Seo watched Wei Junhao.
"He looks like a child," said Min-Seo quietly.
"He has been on a mountain since he was six," said Han-Ho.
"I know."
"Everything is new."
"I know," said Min-Seo. "It is not a criticism. It is—" He looked at Wei Junhao watching the countryside begin to move fast outside the window. "It is good."
The train reached three hundred kilometers per hour.
Wei Junhao made a sound.
Not words.
Just a sound.
The specific sound of someone experiencing something faster than anything they have ever experienced and finding it exactly as extraordinary as River would have said.
The old man was looking out the window.
Watching the countryside pass.
Fields. Mountains. Rivers. Towns. The specific landscape of Korea at three hundred kilometers per hour.
He was not pressing his face against the glass.
He was just watching.
Quietly.
With the full focused attention of something that had been on a mountain for ten thousand years and was now moving through the world as a passenger for the first time.
Feeling nothing through qi.
Just watching.
Han-Ho ate his kimbap.
Made a note about the route adjustment holding correctly.
Put the notebook away.
Watched the countryside too.
They sat in comfortable silence for forty minutes.
Then the old man said:
"Han-Ho."
"Yes."
"The Dragon Veins."
"Yes."
"I can feel them from here," said the old man. "Even without using qi deliberately. The clearing you have done. The sections that are open now. I can feel the energy moving through them."
"Yes," said Han-Ho.
"From the train."
"Yes."
"As a passenger."
"Yes," said Han-Ho.
The old man was quiet for a moment.
"It is like hearing music," said the old man. "For the first time. After a very long time of silence."
Han-Ho looked at him.
The old man was still watching the countryside.
"The blockage," said the old man. "Has been there for twenty thousand years. I have been feeling the silence for eight thousand years. The absence of the flow." He paused. "Now I can feel the flow beginning. In the cleared sections." He paused again. "It sounds like—"
He stopped.
Han-Ho waited.
"I do not have a word for what it sounds like," said the old man. "I have ten thousand years of language and I do not have a word for it."
Han-Ho made a note.
Old man: can feel Dragon Vein flow from KTX. No qi use required. Cleared sections audible to him. No word for the sound.
He closed the notebook.
"The deep central sections," said Han-Ho. "That is the main remaining work. Two weeks probably. Maybe less if the western clearing has already begun the pressure redistribution."
"It has," said the old man.
"You can feel it."
"Yes."
"From the train."
"Yes," said the old man. "The pressure is redistributing. The flow in the cleared sections is pushing against the remaining blockage from the inside. Your cleaning from the outside. Together—" He paused. "It is moving faster than I expected."
"Good," said Han-Ho. "That reduces the estimated completion time."
The old man looked at him.
"Han-Ho," said the old man.
"Yes."
"When the blockage is fully cleared."
"Yes."
"The Dragon Vein network will be fully active for the first time in twenty thousand years."
"Yes."
"The clean energy will flow through both worlds simultaneously."
"Yes."
"Through Earth and through the martial world and through whatever other worlds connect to the network."
Han-Ho was quiet.
He had not thought about the other worlds.
He had been thinking about Earth.
About Seoul.
About the route.
He had not thought about what a fully active Dragon Vein network meant for worlds beyond Earth.
He made a note.
Dragon Vein network: connects to Earth and martial world at minimum. Other connection points unknown. Full activation affects all connected worlds. Filing report. Requesting Ms. Yoon assessment of scope.
He filed it.
The old man watched him file it.
"You filed a report," said the old man.
"Yes," said Han-Ho.
"About the scope of the activation."
"Yes."
"From the KTX."
"Yes."
The old man looked at Han-Ho for a moment.
Then he turned back to the window.
The countryside moved at three hundred kilometers per hour.
"Good," said the old man.
Busan Station.
They had forty minutes before the return train.
Wei Junhao wanted to see the sea.
The sea was not far.
They walked.
Wei Junhao had never seen the sea.
He stood at the edge of Haeundae Beach and looked at the water.
The specific flat endless quality of the ocean in morning light.
The horizon where the water became the sky.
The waves moving toward the shore with the patient relentless consistency of water that has been doing this for longer than any human civilization.
"It is very large," said Wei Junhao.
"Yes," said Han-Ho.
"And it keeps moving."
"Yes."
"It never stops."
"No."
Wei Junhao looked at the sea for a long time.
The old man stood beside him.
They looked at the sea together.
Two martial artists from a world of mountains looking at the ocean for the first time.
Han-Ho stood slightly back.
Made no notes.
Some things did not require notes.
Min-Seo stood next to Han-Ho.
They watched the old man and Wei Junhao watch the sea.
"Han-Ho," said Min-Seo quietly.
"What."
"This is good."
"Yes," said Han-Ho.
"The trip."
"Yes."
"The sea."
"Yes."
"All of it."
"Yes," said Han-Ho.
Min-Seo looked at the water.
"Thank you for adjusting the route," said Min-Seo.
"The eastern section needed the rain assessment anyway," said Han-Ho.
"I know you keep saying that," said Min-Seo. "But thank you."
Han-Ho looked at the sea.
"You are welcome," said Han-Ho.
Kjor on his shoulder offered him a chip.
Han-Ho took it.
The sea moved.
The old man and Wei Junhao stood at the edge of it looking at everything.
"Extraordinary," said River, from the bag pocket.
"Yes," said Han-Ho.
At Busan Station waiting for the return train the old man said something.
He said it quietly.
Not to anyone specifically.
Just said it.
"I have been alive for ten thousand years," said the old man. "I have seen mountains form and rivers change course and empires rise and fall. I have watched the Dragon Veins pulse with energy and go quiet and pulse again. I have tried to clean the blockage for eight thousand years from my side of the wall." He paused. "And then a man with one skill and a notebook and a route cleaned it from the other side in three weeks because it was dirty and he is someone who cleans things."
Nobody said anything.
The platform did its platform things around them.
"I came through the Gate to find the source of what I felt in the Dragon Veins," said the old man. "I expected something large. Something that matched what I felt. Something commensurate with ten thousand years of pursuit."
Han-Ho was eating the last of his kimbap.
"I found a Mana-Janitor," said the old man. "Rank F. One skill. Who told me to step slightly to the left because I was standing on the residue."
Han-Ho folded the kimbap wrapper.
Put it in the bin.
"And I stepped slightly to the left," said the old man. "Because it was the correct thing to do."
He looked at Han-Ho.
Han-Ho looked back.
"The correct thing to do," said the old man. "Is usually very simple. I have spent ten thousand years making it complicated."
Han-Ho looked at the bin where he had put the wrapper.
"The wrapper needed to go in the bin," said Han-Ho.
"Yes," said the old man.
"The residue needed cleaning."
"Yes."
"The blockage needs clearing."
"Yes," said the old man. "It is all the same thing."
"Yes," said Han-Ho.
The return KTX arrived.
They got on.
Wei Junhao pressed his face against the window again.
The train left Busan Station.
The old man watched the countryside through the window.
Listening to the Dragon Veins flowing through the cleared sections.
Like music.
For the first time.
After twenty thousand years of silence.