They started at 10 AM on a Tuesday that smelled like Boyeon's doenjang stew because Boyeon had decided that Tuesday was stew day and operational priorities did not override the weekly menu.
Yeji sat on the living room floor. Cross-legged. Hands on her knees. Eyes closed. Substrate at 9.2%, the highest it had been in two weeks, because she'd spent Monday doing nothing. No fragment visits. No broadcasts beyond maintenance. No [Requiem] usage at all. Twenty-four hours of rest that had felt like twenty-four hours of abandoning the people she'd promised to help, which Eunsoo had told her was irrational and Jihoon had told her was necessary and Boyeon had told her was what happened when you were young and hadn't learned yet that resting was not the same as quitting.
*Ready?* Eunsoo asked.
*Ready.*
*I'll walk you through the approach. The target is the shallowest pathway in my bond. It attached during extraction and it's grown approximately four millimeters into the bond tissue over the past three weeks. The attachment point is at the outer edge of the bond, where my consciousness interfaces with your channel substrate. The pathway runs perpendicular to the bond fibers, which means severing it should not damage the fibers themselves, assuming a clean cut.*
*Assuming.*
*Surgery always assumes. The scalpel doesn't know the outcome. The surgeon's job is to make the assumption valid through precision.*
*Open [Requiem] at minimum power. Channel it through the bond's internal architecture. Not outward. Inward.*
Yeji turned [Requiem] inward. The sensation was strange. Like turning a flashlight toward your own eyes. The bond's interior lit up under [Requiem]'s sweep, the architecture visible the way an X-ray made bones visible through flesh.
The pathways were there. Eleven grid connections in Eunsoo's bond, now illuminated. They looked wrong. Not dramatically. Subtly. The pathways had the geometry of the System's infrastructure: clean lines, uniform thickness, mathematical precision in tissue that was naturally irregular.
*I see them.*
*Good. Focus on the outermost one. Leftmost cluster. The shortest pathway. It terminates three millimeters into the bond tissue. The attachment point is a node approximately one millimeter in diameter.*
Yeji focused. [Requiem]'s illumination narrowed. The pathway resolved into clarity. A thread of something smooth and cold running through the warm irregularity of the bond tissue, ending in a small bright node that connected the pathway to Eunsoo's consciousness.
*I see the node.*
*The excision requires cutting the pathway at the node. Not above the node, not below it. At it. The node is the anchor. If you cut above, the pathway remnant will reattach. If you cut below, you'll sever bond tissue. The node itself must be excised cleanly. Think of it as removing a tick. You don't cut the body. You extract the head.*
*How?*
*Channel [Requiem] into a point. The smallest focus you can manage. A needle, not a blade. Insert the point between the node and the surrounding bond tissue. The node is attached by micro-connections, like the roots of a tooth in a socket. You need to sever those connections individually. One by one. If you pull the node out without severing the connections, it will tear bond tissue on the way out.*
*Eunsoo. What happens to you if I make a mistake?*
*Pain. Bond damage. Possibly a reduction in my bond's coherence, similar to what Yuna experienced but localized. I've prepared for this. The risk is calculated.*
*That's not what I asked.*
*You asked what happens if you make a mistake. I told you the clinical outcome. If you're asking whether it will hurt—* The pause. Not clinical. Human. The ghost of a surgeon who'd spent her career on one side of the scalpel and was now on the other. *Yes. It will hurt. Do it anyway.*
Yeji breathed. One breath. Two.
She narrowed [Requiem] to a point.
The six spirits in their bond positions. Minwoo steady. Yerin rigid. Nari pressed close to Minwoo. All watching. All aware that Eunsoo was on the table and Yeji was holding the knife.
The point of [Requiem] touched the node.
*Contact,* Eunsoo said. Her voice had thinned. The scalpel had touched and the patient felt it. *I can feel the pathway's grid connection responding. It knows something is touching it. Proceed before it adapts.*
Yeji pushed the point between the node and the bond tissue. Felt resistance. The micro-connections that Eunsoo had described, tiny anchors holding the node in place. They were strong for their size. The System built things to last.
She severed the first connection.
Eunsoo's presence shuddered. Not a sound. A vibration through the bond, the way a building shuddered when a support was cut. Small. Contained. But real.
*Continue,* Eunsoo said.
Second connection. Third. The node shifted in its socket, loosening. The pathway behind it trembled, the smooth cold thread vibrating as its anchor was dismantled.
Fourth connection. Fifth. Yeji counted them because counting was what you did when the work was too delicate for anything but one step at a time. Each connection felt slightly different. Some were thick and required sustained pressure. Some were thin and snapped under the point's touch. All of them made Eunsoo's presence shudder.
*Eight connections severed. I count approximately four remaining. The node is mobile. Yeji, when you sever the last connection, extract immediately. Don't let the node settle. If it re-contacts bond tissue, it will reattach within seconds.*
*Understood.*
Ninth. Tenth. Eleventh.
One left.
*Eunsoo.*
*Cut.*
She severed the last connection and pulled.
The node came free. A cold bright point of System architecture separated from the bond it had been parasitizing. Yeji held it for a fraction of a second.
*Discard it. Push it out through the substrate. It's inert without a host connection.*
She pushed. The node passed through the substrate and dissolved into the ambient mana field. Gone.
The bond settled. The shuddering stopped. The space where the pathway had been was a small gap in Eunsoo's bond tissue, raw at the edges, already beginning the slow process of healing.
*Status?* Yeji asked.
*Pathway one excised. Bond integrity at 98.7%. The incision site is clean. No collateral damage to surrounding tissue. Pain level is—* Eunsoo paused. *—manageable. The procedure worked.*
Worked. One pathway. One of eleven in Eunsoo's bond. One of thirty-four across all three fragment-sourced spirits.
*Time elapsed?* Yeji asked.
*Seven minutes.*
Seven minutes for one pathway. At that rate, the eleven pathways in Eunsoo's bond alone would take over an hour. The seventeen in Yerin's would take two. And the substrate cost: Yeji checked her internal sense.
*Substrate at 8.4%,* Eunsoo confirmed. *0.8% consumed for one excision. At this rate, you can perform approximately six to seven excisions per session before hitting operational minimum.*
Six to seven per session. Thirty-four total pathways. Five to six sessions needed. At one session per day with recovery days between them, two weeks minimum to clear all the pathways from existing bonds.
And that was just the existing bonds. Any new extraction would add more.
*Let's do another one,* Yeji said.
*Rest first. Two minutes. Let the substrate stabilize.*
She waited. Two minutes in the bond's interior, the architecture settling around the small wound they'd made. The other spirits remained at their positions. Minwoo had put his presence around Nari like a blanket, shielding the seven-year-old from the sight of spiritual surgery. Yerin hadn't moved. The fifteen-year-old was staring at the procedure site with the focused attention of someone watching the thing that would eventually happen to her.
Two minutes passed.
*Again,* Eunsoo said.
The second pathway was deeper. The node was larger, the micro-connections more numerous. Fourteen connections instead of eight. Yeji's precision held for the first ten but on the eleventh her focus slipped, the point of [Requiem] sliding a fraction of a millimeter into bond tissue instead of the connection.
Eunsoo's presence snapped taut. A sound that wasn't a sound. The ghost equivalent of a sharp intake of breath.
*Bond tissue contact. Minimal. Continue.*
Minimal. But not zero. Yeji re-centered, completed the remaining connections, extracted the node, discarded it. The second gap in the bond tissue was rougher than the first. The edges ragged where the slip had torn tissue instead of cutting it.
*Bond integrity at 96.1%,* Eunsoo said. The clinical voice, steady, but Yeji could feel through the bond that the healer was in pain. Not the kind of pain that showed. The kind that lived underneath and expressed itself in the tightness of the presence, the way a person held their body after a blow to the ribs. *The tissue damage is minor and will heal. The excision is complete.*
*I slipped.*
*You corrected. In live surgery, the margin between a perfect cut and a recovery is the surgeon's reflex speed. Your reflex speed is adequate.* Eunsoo paused. *For now. The deeper pathways will have less room for error.*
Two down. Nine to go in Eunsoo's bond. Substrate at 7.5%.
They did four more before Eunsoo called a stop.
Six pathways excised. Bond integrity at 89.3%. The remaining five pathways in Eunsoo's bond were the deep ones, the ones approaching the channel substrate junction, the ones Eunsoo had described as entangled with normal tissue.
*We stop here,* the healer said. *The remaining pathways require a different approach. The connections are too integrated for simple point excision. I need to develop a new technique. Wider focus. Slower separation. More control.*
*How long?*
*Days to develop. Days more to practice. And we'll need a full session for each of the remaining five.*
The partial success sat between them. Six pathways removed from Eunsoo's bond. The shallow ones, the easy ones, the ones that came out clean or nearly clean. The deep ones remained, their roots reaching toward the grid, carrying their fractions of a percent.
*But the shallow ones are gone,* Yeji said.
*Yes. The six excised pathways were routing approximately 1.8% of my bond energy toward the grid. That energy is now retained. The procedure works for shallow pathways. It simply doesn't work yet for deep ones.*
A path forward. Narrow. Requiring a technique that didn't exist yet, applied to tissue that had never been operated on, in a space that no medical textbook described. But a path.
*Eunsoo. Can you teach me to do this faster?*
*Practice will increase your speed. But the deeper pathways won't tolerate speed. They'll require patience.* The healer's voice had the raw quality of someone who'd been cut open six times in ninety minutes and was discussing the methodology with professional detachment because detachment was the only way to discuss your own dissection. *Rest today. We resume tomorrow. And Yeji.*
*Yeah.*
*When we get to Yerin's pathways. The deep ones. The ones fused with the substrate. I need you to understand that excision may not be possible. Not with current technique. Not with any technique I can currently imagine. Some of those roots may be permanent.*
In the bond, Yerin heard this. Yeji felt the fifteen-year-old's presence contract, pulling inward, the defensive posture of someone who'd just been told that the thing inside her might not come out.
*Then we'll figure out something else,* Yeji said.
*Yes,* Eunsoo said. *We will.*
The bond settled. Yeji opened her eyes. The living room. Boyeon's stew smell from the kitchen. The sound of Jihoon's pen scratching in his notebook. The apartment, ordinary, the kind of place where people ate and rested and lived, containing in its living room a woman who'd just performed spiritual surgery on a ghost using an ability designed to harvest the dead, and the ghost had survived, and the surgery had worked, partially, and the path forward was longer than any of them wanted but shorter than it had been yesterday.
Changwon was in the kitchen. He looked at her when she opened her eyes and read her face the way the shield-type read everything, through the lens of protection: was the person in front of him in danger.
"How'd it go?" he asked.
"Six out of eleven," she said. "Partial success."
Changwon nodded. The shield-type's response to partial success: acknowledge, file, prepare for the next round. No celebration. No disappointment. The steady middle that kept operations moving.
"Stew's ready," he said.
She ate the stew. It was good. Boyeon's stews were always good, and the goodness of them was the kind of thing that didn't solve anything but made the unsolved things slightly more bearable, which was its own kind of surgery.
