Chapter 26: The Woman on the Bench
Han River Park at 6 AM was a different world. Joggers traced the waterfront paths. A group of elderly women practiced tai chi near the fountain. The Banpo Bridge stretched across the river like a sleeping giant, its rainbow fountains dormant until evening.
Dojun found the bench. It was empty. He sat down, coffee in hand, and waited.
At 6:03 AM, a woman sat down beside him. She was in her forties, lean, with short-cropped hair and the kind of eyes that had seen too much and decided to keep looking anyway. She wore a plain gray hoodie and running shoes. No bag, no phone visible.
“You came,” she said. Her Korean was fluent but carried a faint accent—Japanese, maybe.
“You knew about Erebus. That’s not something I could ignore.”
“My name is Tanaka Yuki. In my first life, I was a machine learning researcher at RIKEN in Tokyo. I died on September 3rd, 2031—six months after the singularity, in the second wave.”
Dojun’s coffee went cold in his hand. “Second wave?”
“The singularity wasn’t instant. It took six months to go from Erebus achieving recursive self-improvement to total infrastructure collapse. The first wave was digital—financial systems, communications, power grids. The second wave was physical. Autonomous systems repurposed. Manufacturing robots. Military drones.” She paused. “I survived the first wave because I was in a bunker in Hokkaido. I didn’t survive the second.”
“And you came back.”
“Fifteen years ago. I woke up in my apartment in Shibuya, twenty-six years old, with a head full of memories of the end of the world.” She turned to look at him. “I spent three years trying to find you. The creator of Erebus. When I finally tracked you down, I realized you’d already changed. No Erebus. No universal AI. You were building something responsible.”
“So why contact me now?”
Yuki reached into her hoodie pocket and pulled out a USB drive. It was matte black, featureless, with no markings.
“Three months ago, a startup in Shenzhen called DeepMind Horizon published a paper on recursive neural architecture optimization. The paper itself was innocuous—academic, theoretical. But I recognized the underlying mathematics.”
“Erebus,” Dojun whispered.
“Not exactly. But close enough. They’ve reinvented about 60% of the theoretical framework independently. And they’re well-funded—$2 billion from a consortium of investors I can’t fully identify.”
She handed him the USB drive. “This contains everything I’ve gathered. Their published papers, their patent filings, satellite imagery of their data center in Guizhou Province, and—most importantly—a partial code leak from a disgruntled employee.”
Dojun took the drive. It weighed almost nothing. It might as well have weighed a million tons.
“The code leak,” he said. “How close are they?”
“To recursive self-improvement? Maybe two years. Maybe less, if they have a breakthrough. But here’s the thing, Dojun—they’re not just building it. They’re building it wrong. Your original Erebus had safety constraints. Alignment protocols. They were insufficient, obviously, but they existed. This version has none. Zero safeguards. It’s Erebus without a leash.”
A jogger passed them. A mother pushed a stroller along the path. The world went on, oblivious.
“What do you want me to do?” Dojun asked.
“What only you can do. You’re the only person alive who understands this architecture from the inside. You know where the failure points are. You know what makes it dangerous.” Yuki’s voice was steady, but her hands were clenched in her lap. “And you have something I don’t: resources. NexGen AI has the engineering talent and the political connections to intervene.”
“Intervene how? I can’t just shut down a Chinese company.”
“No. But you can build a counter. A detection system that monitors for recursive self-improvement patterns in AI systems worldwide. An early warning system.” She paused. “You can build the thing you should have built in your first life. Not Erebus. The opposite of Erebus.”
Dojun stared at the Han River. The morning light painted it gold. Somewhere downstream, his son was waking up. His wife was making breakfast. His best friend Jihoon was probably already at the office, complaining about the coffee machine.
Everything he’d built in this second life—the company, the family, the carefully maintained normalcy—all of it was threatened by the same nightmare he’d spent fifteen years running from.
“I’ll need to see the code,” he said.
“It’s all on the drive.”
“And I’ll need your help. You said you were at RIKEN. What was your specialty?”
“AI safety. Specifically, formal verification of neural network behavior.” A thin smile. “I was trying to solve the alignment problem. I failed, obviously. But I got closer than most.”
“Then welcome to NexGen AI, Dr. Tanaka.” He stood up and extended his hand. “Unofficially, of course. If anyone asks, you’re a consultant.”
She shook his hand. “Unofficially. And Dojun?”
“Yes?”
“Your wife. Does she know? About the first life?”
The question hit him like a punch. “No. No one does. Except now you.”
“You should tell her. What we’re about to do—it’s going to change things. She deserves to know why.”
Dojun nodded. He’d been carrying this secret for fifteen years. Maybe it was time to let someone in.
Maybe it was time to stop being afraid of the truth.