The walk to his apartment was a study in avoidance.
He kept his hands in his pockets, his posture slouched in that practiced curve that suggested laziness rather than the hyper-vigilance of an S-Rank threat. Beside him, Sylvie walked with a fast, nervous energy, her boots scuffing the pavement as she tried to match his stride.
She was vibrating. Not like Naruto, who vibrated with the chaotic hum of a broken generator. Sylvie vibrated like a wire pulled too tight, singing a high-pitched note just before it snapped.
Kakashi observed her out of the corner of his visible eye. The faded pink hair. The dark roots. The way she kept touching her face, tracing the line of her jaw as if checking to see if she was still real.
She's unstable, Kakashi noted, the thought clinical and detached. The Snow mission. The hospital roof. Sasuke leaving. It's too much weight on a foundation not built to hold it.
They reached the Blue Rotunda. The cylindrical duplex stood out against the grey November sky, its slate-blue roof tiles gleaming dully.
The building was a strange hybrid of temple and factory, with traditional pagoda eaves jutting out over thick, rusted conduit pipes that shivered with a crawling, insectoid hum in the quiet morning air.
zzzzzzt
"This is it?" Sylvie whispered, looking up at the building.
"Don't sound so disappointed," Kakashi drawled, unlocking the front door. "It has a roof. Walls. Sometimes hot water."
He led her up the narrow stairs to his unit.
The air inside was stale. It smelled of old paper, dust, and the absence of life. It was the scent of a room that held its breath while its occupant was away killing people.
The light filtering through the lime-green curtains cast a sickly, underwater tint over the peeling paint, highlighting the cracks in the plaster that ran down the wall like veins.
Sylvie stepped inside, looking around with wide, analytical eyes.
He watched her scan the room. He saw her register the dust patterns on the floor—the singular, worn path from the door to the bed to the bathroom. The rest of the room was covered in a fine, grey film of neglect.
She looked at the cracked plaster near the ceiling. She looked at the single, naked lightbulb hanging from its cord like a noose.
It swayed slightly in the draft from the door, casting shifting, restless shadows that made the room feel unsettled even when empty.
"It's..." she started, then hesitated. "Tidy."
"I try," Kakashi lied.
He walked over to the recessed bookshelf, the only part of the room that felt alive. It was overflowing with volumes—technical manuals, history texts, and a comprehensive, dog-eared collection of Icha Icha.
The spines were cracked and worn white from use, a chaotic wall of color that stood in stark defiance to the austere, monk-like emptiness of the rest of the room.
Sylvie wandered over to the desk under the window. She looked at the dying snake plant. She looked at the two picture frames, angled carefully away from the room so only the wall could see the faces of the dead.
The snake plant on the sill was barely clinging to life, its leaves dusty and brittle, mirroring the cracked paint on the windowsill beneath it.
She didn't touch them. Good instincts.
She turned back to him, her gaze landing on his face. Or rather, the mask covering it.
"What's it for?" she asked again.
Kakashi nearly laughed. It was such a child's question. Persistent. Annoying.
"I told you," he said, leaning against the wall and pulling out his book. "Fangs."
"No," Sylvie said, shaking her head. "Really. What is the tactical application? It's a standard-issue fabric, but the weave looks... dense."
Kakashi paused. He lowered the book.
"What is Iruka teaching you kids these days?" he mused.
He tapped the fabric covering his nose.
"It's a particulate filter," he explained, his voice losing the playful lilt. "Treated with a mild neutralizing agent. It filters out pollen, dust, and common airborne toxins. In the field, hesitation kills. If you sneeze, you die. If you smell the poison gas before you see it, you die."
Sylvie's eyes widened. "Invisible poisons? You mean like... methane? Or vaporized chakra?"
Kakashi felt the eye crinkle happen. She was sharp.
"I guess you did learn some things in school," he murmured.
Sylvie stood a little straighter, a flush of pride coloring her cheeks.
Kakashi gestured vaguely with his book toward the dresser in the corner. It was a simple, beat-up piece of furniture that looked like it belonged in a monastery.
"Top drawer," he said. "They're all clean. From when I was a teenager. ANBU issue."
Sylvie walked over. She opened the drawer.
It was packed. Dozens of masks—dark blue gaiters, black face-coverings—neatly folded and stacked.
"I didn't know Kakashi-sensei was a hoarder," she scoffed.
Kakashi looked up, surprised. "Rude."
He glanced at his overflowing bookshelf, then back at the masks.
"But accurate."
Sylvie reached in. She pulled out a dark blue gaiter. The fabric was soft with age, worn thin in places but still viable.
The fabric was cool and soft against her fingertips, smelling faintly of old cedar and the sharp, stinging scent of treated charcoal and sterile gauze.
She held it up. She touched it to her cheek.
Then, she sniffled.
Kakashi froze. ?
Sylvie turned around.
Tears were streaming down her face. They cut clean tracks through the dust on her cheeks, silent and fast.
Kakashi felt a spike of genuine alarm. ?!
What did I do? his mind raced. Did the dust trigger an allergy? Is the fabric treated with something she reacted to? Did I accidentally insult her lineage?
"Kakashi-sensei...." Sylvie whispered.
She clutched the mask to her chest like it was a lifeline.
"Thank you...."
Kakashi relaxed, his shoulders dropping an inch. "You're welcome, Sylvie-chan."
"I-I'm sorry..." she gulped, the sob breaking loose. "I just... you and.... Anko-sensei and... Naruto and... Sasuke... I don't... I don't have family..."
Kakashi frowned under his mask.
The words hung in the stale air of the apartment. I don't have family.
He looked at her. Really looked at her. A twelve-year-old girl standing in a dusty room, holding a piece of old cloth, crying because someone gave her a filter to breathe.
He got it.
As much as he didn't have the emotional capacity to fix her—his own tank had been empty for a decade: he recognized the specific, hollow shape of her silence.
He was alone too. This apartment wasn't a home; it was a storage locker for a weapon that only woke up when it was time to kill.
She was overwhelmed. The missions. The snow. The sight of her teammate turning into a monster. The other teammate trying to kill him. It was too much for a Genin. It was too much for a Jōnin.
But for a moment, just a single heartbeat, the crushing weight of the ghosts in the picture frames felt a little lighter.
Because this small, strange girl saw him not as the Copy Ninja, or the Friend-Killer, but as a safe place.
Kakashi closed his book. He walked over to her.
He placed his hand on her head. Her hair was a mess—soft, but tangled.
His gloved hand was warm and heavy on her head, a grounding weight that momentarily stopped the wire-tight humming in her bones.
"Let's go get them," Kakashi said softly.
He patted her head gently.
"Before Anko actually murders Naruto."