Ren stared at the note again, fingers trembling as if holding fire.
She's safe. For now. Back off.
The message was handwritten—deliberate strokes, meant to taunt. Masaki didn't even bother to hide his arrogance.
The apartment was wrecked. Airi's things were strewn across the floor. Her scarf lay folded neatly on the couch, as if to say: I was here. I didn't leave willingly.
He grabbed his phone and dialed Yui.
No answer.
He tried again—still nothing.
He paced, heart beating in staccato, his mind grasping for anything, anyone who could help.
Then he remembered Mika.
"You're saying he kidnapped her?" Mika's voice was tense over the speakerphone.
"She wouldn't leave her phone. He left a note." Ren sent a photo of it. "That's him."
"I'll track her signal," she said. "If they moved her fast, I might still get something from tower pings."
Ren wasn't waiting for pings.
He opened his laptop, hands moving with mechanical speed.
He dug into old emails, the surveillance systems Masaki used, the backdoors Ren had once written before they stopped speaking.
He never thought he'd use them—not like this.
Yui showed up twenty minutes later, breathless, eyes wild.
"He took her," Ren said before she could speak. "And he wants me to stop digging."
Yui swore under her breath and dropped her bag. "So what's the plan?"
"We don't stop," Ren said. "We push harder."
While Mika traced digital footprints and Yui compiled more testimonies from victims, Ren focused on the backdoor he'd built years ago—code buried inside a custom home security software.
Masaki had insisted on running everything in-house. No third-party software. No trust. That was his weakness.
And Ren was going to exploit it.
He cracked the firewall within an hour.
Then—he saw it.
A feed.
Live.
A small room. Airi. Tied to a chair. Breathing heavily, not injured—but clearly terrified.
There was no sound, but the image was enough.
And on the screen—Masaki stepped into view.
Smirking.
He knew Ren was watching.
"Where is this?" Yui whispered behind him.
Ren traced metadata. Pulled street grid overlays. Utility feeds.
Mika called just then. "We've got a general location—abandoned warehouse district on the old port side. Signal pinged from there about thirty minutes ago."
"Send it," Ren said.
"I'll meet you there."
They drove in silence.
Every red light felt like a crime.
The sun was starting to dip, casting long shadows across the industrial graveyard of rusted containers and gutted factories.
"This is insane," Yui muttered. "He's your brother, Ren. How did he turn into this?"
Ren didn't answer.
He wasn't sure he knew.
Maybe Masaki had always been this way. Ren had just refused to see it.
The warehouse was larger than he expected—three stories, windows blacked out. A few broken lights buzzed overhead. They moved carefully, sticking to shadows.
Mika met them behind a row of steel drums.
"He's inside," she said, holding up her phone. "Signal confirms it. But we need to be careful. If we rush in, he could—"
A scream pierced the air.
Airi.
Ren didn't think.
He ran.
Inside, his footsteps echoed on the cracked concrete.
He heard another scream—closer this time.
He turned a corner and found a stairwell, half-rusted but intact. He climbed, two steps at a time.
The second floor opened into a long corridor of old office doors.
The third was storage—metal shelves, dust, crates.
Then—another sound.
Movement.
He followed it, heart slamming in his chest.
He turned a corner and saw a room with a single light on.
He kicked the door open.
Airi looked up, eyes wide.
"Ren—!"
Masaki turned from her, smile slow and poisonous.
"You came."
Ren stepped in, fists clenched. "Let her go."
Masaki chuckled. "You used to be smarter than this. Do you really think exposing me will fix anything? You'll destroy the whole family."
"You already did that."
Masaki walked toward him slowly. "You think she's the reason I'm doing this? You think you understand what I've built?"
"I don't care."
Ren lunged.
The two of them crashed into the desk behind them, fists flying.
Masaki was strong—too strong. He slammed Ren against the wall, fist raised.
Then—
Crack.
A blow to the side of Masaki's head.
Yui stood behind him, breathing hard, a crowbar in her hands.
He staggered back, blood dripping from his temple.
Ren shoved him aside and rushed to Airi, untying her hands.
Her fingers immediately gripped his shirt.
"You came for me," she whispered, voice shaking.
"Always."
Masaki was unconscious when the police arrived—thanks to Mika, who had called them mid-fight.
He was cuffed, bleeding but alive.
Airi gave her statement under a blanket, hands still trembling.
Yui stood beside her.
Ren stood apart for a moment, just watching.
Everything felt… surreal.
Like the end of a storm.
Or maybe the eye of one.
Later, when the three of them sat in the emergency room waiting area, Yui looked at Ren and said softly:
"What now?"
Ren looked at Airi.
She was holding his hand. Not out of fear. Out of something steadier.
Something earned.
"We finish what we started," he said. "And we rebuild. Together."