Mak-bong returned before sunset with three names.
His face was pale, his hair messy from running through alleys, and his breathing came fast.
Seo-joon sat inside the broken shrine, counting the day's coins for the fourth time.
Still not enough.
Even after Old Lady Wol's market sales and Min-seo's door deliveries, they had less than Gu Chil demanded. Ten mun was not just a fee. It was a chain thrown around Seo-joon's neck before he could even stand straight.
Mak-bong dropped to a crouch.
"I asked around."
Seo-joon looked up. "And?"
"Everyone hates Gu Chil."
"That is not useful."
Mak-bong frowned. "You told me to find who hates him."
"I told you to find who hates him enough to do something."
The boy went quiet.
Min-seo sat nearby, washing dirt off the remaining roots with a damp cloth. Her mother slept behind her, coughing softly now and then. Min-seo had not said much since the alley incident.
She still looked at Seo-joon differently.
Not softer.
More cautious.
Like she had seen a blade hidden under his sleeve.
Mak-bong swallowed. "Fine. Three people."
Seo-joon placed the coins down.
"Names."
"First is Baek Man-sik. Butcher near the west road. Gu Chil broke his younger brother's hand over debt."
Seo-joon nodded.
"Second?"
"Chae Jin-gu. Used to carry grain sacks for merchants. Gu Chil accused him of stealing and beat him until no one hired him again."
"Did he steal?"
Mak-bong hesitated.
"Maybe."
Seo-joon's eyes narrowed.
"Truth matters. A guilty man hates punishment differently than an innocent man."
Mak-bong looked away. "I don't know."
"Find out later. Third?"
Mak-bong lowered his voice.
"Yun Dal-rae."
Old Lady Wol, sitting near the doorway, clicked her tongue.
Seo-joon glanced at her. "You know that name?"
"Everyone knows Dal-rae," Old Lady Wol said. "She runs dice games behind the laundry houses."
"A gambler?"
"A woman who knows where men lose money."
That was more interesting.
Seo-joon leaned forward. "Why does she hate Gu Chil?"
Mak-bong answered, "He owes her. A lot."
Seo-joon became still.
There it was.
Not anger.
Not pride.
Money.
Money was cleaner than revenge.
Revenge made people reckless. Debt made people useful.
"How much?" Seo-joon asked.
Mak-bong shrugged. "People say twenty mun. Some say fifty."
Old Lady Wol snorted. "If people say fifty, it is probably thirty."
Seo-joon looked at the coins again.
He had less than ten.
Gu Chil owed possibly thirty.
And Deok-su was still above him.
A structure formed in Seo-joon's mind.
Gu Chil collected from sellers. Gu Chil squeezed the poor. Gu Chil demanded money from Seo-joon.
But if Gu Chil himself owed money, then Gu Chil was not strong.
He was pressured.
A pressured man made mistakes.
Modern rule: never attack a system from where it is strongest. Attack where incentives conflict.
Gu Chil's strength was violence.
His weakness was debt.
Seo-joon stood.
"Take me to Dal-rae."
Min-seo looked up. "Now?"
"Yes."
"You barely know this place."
"That's why Mak-bong is walking in front."
Mak-bong looked unhappy. "Why am I always walking in front?"
"Because if there is danger, I want to see who attacks you."
The boy stared at him.
Old Lady Wol laughed so hard she started coughing.
Min-seo's mouth tightened like she wanted to object, but she did not.
Seo-joon noticed.
"You want to say something."
She wrung the cloth slowly.
"You keep moving as if people are pieces on a board."
Seo-joon looked at her.
"They are."
Her eyes sharpened.
"My mother too?"
"No."
"Why?"
"Because she is not useful enough to be a piece."
Min-seo's face went cold.
Mak-bong froze.
Even Old Lady Wol stopped smiling.
Seo-joon let the silence sit for a moment, then continued.
"That is why I gave her food without asking for labor. Not everything weak is useful. But sometimes protecting what is weak makes useful people stay."
Min-seo stared at him.
"That's still cruel."
"It's honest."
Her fingers tightened around the cloth.
"You think honesty makes cruelty better?"
"No," Seo-joon said. "It makes contracts clearer."
For a moment, Seo-joon thought she might leave.
Instead, Min-seo looked away.
"Then make this clear. If you use my mother to control me, I will hate you."
Seo-joon nodded once.
"Good."
She looked back, confused.
"Hate is better than pretending. I can work with hate if I know where it is."
Min-seo did not answer.
But she stood.
"I'm coming."
"No."
"Yes."
"This is dangerous."
"Then you shouldn't go alone with a child."
Mak-bong pointed at himself. "I'm not a child."
Old Lady Wol looked at him. "You steal like one."
Mak-bong shut his mouth.
Seo-joon studied Min-seo for a second.
She was stubborn.
That was inconvenient.
But not useless.
"Stay behind me," he said.
"I won't promise that."
"You're a terrible worker."
"And you're a terrible employer."
Old Lady Wol smiled faintly.
"Good. Now you sound like a business."
Yun Dal-rae's gambling place was not a building.
It was a gap between three laundry houses, hidden behind hanging sheets and steam. Men crouched around wooden bowls, tossing dice and whispering curses. A few women watched from the sides, their faces unreadable.
The air smelled like soap, wet cloth, sweat, and bad decisions.
Mak-bong led them through a side opening.
A woman sat on an overturned basket near the back.
She was maybe in her early thirties, with sharp eyes and a red ribbon tied around her wrist. Her clothes were plain, but clean. Too clean for the slums. That told Seo-joon she was not rich, but she managed money better than most.
Yun Dal-rae looked at Seo-joon before he spoke.
"You're the root boy."
Seo-joon paused.
Information traveled fast.
Too fast.
"I sell food," he said.
"You sell trouble."
"Sometimes they are bundled together."
Dal-rae's lips curved slightly.
Min-seo stood behind him, silent but alert. Mak-bong hovered near the sheets, ready to run.
Dal-rae waved one hand, and the nearest gamblers shifted away.
Not far.
Just enough to pretend privacy existed.
"What do you want?" she asked.
Seo-joon crouched across from her.
"Gu Chil owes you money."
The smile vanished.
A man nearby stopped shaking dice.
Dal-rae's eyes became flat.
"Careful."
Seo-joon lowered his voice.
"I can help you collect."
She laughed once.
"You? A starving boy with dirt on his face?"
"Yes."
"Do you even have ten mun?"
"No."
"Then you can't help me collect thirty."
Thirty.
Old Lady Wol had guessed correctly.
Seo-joon stored that away.
"I don't need to pay his debt," Seo-joon said. "I need to make the debt heavier than his pride."
Dal-rae studied him.
"You speak strangely."
"I think clearly."
"That is not the same thing."
Seo-joon accepted that with a small nod.
Dal-rae leaned closer.
"Gu Chil is Deok-su's dog. Dogs bite."
"Only if their master keeps feeding them."
Her gaze sharpened.
Seo-joon continued, "If Gu Chil is collecting from the market, from beggars, from sellers, from women selling scraps, why does he still owe you?"
Dal-rae's face did not move.
But her silence changed.
Seo-joon smiled faintly.
"Because he gambles. Because he drinks. Because he keeps some money before it reaches Deok-su. Or because Deok-su does not pay his dogs enough."
One of the nearby gamblers looked away.
Confirmation.
Small, but enough.
Dal-rae tapped one finger against her knee.
"And what do you want from me?"
"Information. When does Gu Chil gamble? Who does he drink with? How much does he lose? Who has seen him hide money?"
"And in return?"
Seo-joon took two roots from inside his sleeve and placed them in front of her.
The gamblers laughed.
Dal-rae did not.
She stared at the roots.
Then at Seo-joon.
"You insult me."
"No. I start small."
"I don't need roots."
"No, but people around you do."
He looked at the gamblers.
"Men who gamble hungry make stupid bets. Feed them cheaply, and they stay longer. Stay longer, lose more."
Dal-rae's eyes narrowed.
For the first time, she looked interested.
Seo-joon continued, "I can supply small food. Quietly. You sell or give it how you want. Your players stay. You earn more. I get information."
That was the real offer.
Not roots.
Customer retention.
In his old life, companies gave free snacks, free trials, small discounts. Not because they were kind. Because people stayed where friction was low.
Even gambling dens needed strategy.
Dal-rae picked up one root.
"You are either clever or insane."
"Both survive better than honest."
Min-seo's eyes flicked toward him, but she said nothing.
Dal-rae leaned back.
"Gu Chil comes every third night. Drinks rice wine. Throws dice badly. Blames everyone. Owes me thirty mun and owes another man near the river, maybe more."
Seo-joon listened carefully.
"Does Deok-su know?"
Dal-rae smiled.
"If Deok-su knew everything, Gu Chil would have fewer teeth."
Good.
Very good.
"Who collects Deok-su's money from Gu Chil?"
"Sometimes Gu Chil brings it himself. Sometimes a man named Kang Yul comes."
Old Lady Wol had not mentioned that name.
Seo-joon asked, "Who is Kang Yul?"
Dal-rae's smile faded.
"Deok-su's bookkeeper."
Bookkeeper.
Better than an enforcer.
A man who counted money could destroy a man who stole it.
Seo-joon stood.
Dal-rae lifted the root slightly.
"And my supply?"
"Tomorrow."
"How much?"
"Enough to test."
"Price?"
"Information first. Price later."
Dal-rae laughed softly.
"You bargain like a thief."
Seo-joon looked at her.
"No. Thieves take once. I plan to return."
That made her stop laughing.
The moment they left the laundry houses, Mak-bong exhaled loudly.
"I hate that place."
Min-seo looked at Seo-joon.
"You are feeding gamblers now?"
"I'm feeding people near information."
"That sounds worse."
"It is."
"Then why do it?"
Seo-joon stopped near a narrow alley and faced her.
"Because Gu Chil cannot be beaten by complaining. He cannot be beaten by asking him to be fair. He cannot be beaten by paying him until he becomes kind."
Min-seo said nothing.
Seo-joon's voice lowered.
"He has to be made expensive to keep."
Mak-bong frowned. "Expensive to who?"
"To Deok-su."
The boy's eyes widened slowly.
Seo-joon continued, "If Deok-su thinks Gu Chil steals, lies, gambles, creates trouble, and reduces profit, then Gu Chil becomes a bad asset."
Min-seo stared at him.
"You want his own people to remove him."
"I want his own system to reject him."
Mak-bong looked amazed. "So we don't fight?"
Seo-joon's eyes were cold.
"We fight with numbers first."
They returned to the shrine near evening.
Old Lady Wol was waiting inside.
Her face was serious.
"Kang Yul came to the market."
Seo-joon stopped.
That was too soon.
"What did he ask?"
"Who sells the soft roots? How much? Who collects? Who supplies?"
Seo-joon's mind sharpened.
The bookkeeper was already looking.
Maybe Gu Chil had reported him.
Maybe Deok-su had noticed the new product.
Maybe the broken sign had done more damage than expected.
"What did you say?" Seo-joon asked.
Old Lady Wol looked offended.
"I said I was an old woman trying not to starve."
"And?"
"He told me Deok-su wants the root seller tomorrow."
The shrine went silent.
Mak-bong whispered, "That's bad."
Min-seo looked at Seo-joon.
For once, she did not challenge him.
Seo-joon walked to the corner and slowly unwrapped the pot. Its dark surface caught the weak evening light.
The secret sat there, silent and impossible.
His greatest strength.
His greatest weakness.
Deok-su wanted to meet him.
Gu Chil wanted to tax him.
Kang Yul was asking questions.
Dal-rae had information but wanted supply.
Old Lady Wol wanted her cut.
Min-seo wanted safety.
Mak-bong wanted food.
Everyone wanted something.
That was good.
Wants created handles.
Seo-joon wrapped the pot again.
"Tomorrow, I meet Deok-su."
Mak-bong looked horrified. "Are you crazy?"
"Yes."
Min-seo stepped closer.
"He could kill you."
Seo-joon picked up the small pouch of coins.
"He could."
"And you're still going?"
Seo-joon looked at her.
"If I refuse, I look weak. If I run, I look guilty. If I go empty-handed, I look poor."
He closed his fist around the pouch.
"So I won't go empty-handed."
Old Lady Wol's eyes narrowed.
"What will you bring?"
Seo-joon looked toward the market road, where men like Gu Chil thought power came from fear alone.
"A business proposal," he said.
Mak-bong blinked. "For Deok-su?"
Seo-joon's lips curved faintly.
"No."
His eyes turned cold.
"For replacing Gu Chil."