Eight years ago, the sky over the grand suburban estates didn't feel heavy with surveillance. The high-voltage perimeter fences didn't exist, and the courtyard at the center of the academy grounds wasn't a forbidden zone locked behind biometric security. It was just a place where four families shared a life built on an unbreakable foundation.

In the summers, the gates between the sprawling properties were left wide open.

Under the shade of the massive willow trees, the older generation of the alliance sat at long pavilion tables, toast after toast ringing out over the sound of laughing children and clinking glasses. The Kim family's vast security infrastructure wasn't a weapon used to hunt down teenagers; it was merely the quiet, invisible shield ensuring their collective peace. The Park family's media empire didn't deal in sanitized histories or wiped servers; it was the loud, vibrant soundtrack playing from the outdoor speakers, echoing Chae-won's early piano melodies across the lawns.

Back then, the older siblings were the ones running the grounds.

A teenage Seo-jun stood by the pavilion, his sharp eyes already observant but lacking the cold, calculated suspicion that would define him years later. Beside him, a young Woo-jin and Ha-yun laughed freely, trading stories about their music lessons and school rivalries without a single corporate boundary standing between them.

There were no encrypted burner phones hidden in jacket pockets. No custom scripts running in the dark to erase digital footprints. If someone sent a message, it was a shout across the garden or a simple, unmonitored note slipped under a door.

Everyone belonged. The four logos—Kim, Jung, Park, and Lee—were stamped together on the welcoming archway at the main entrance, a symbol of absolute trust and shared prosperity. The alliance wasn't a prison grid; it was a sanctuary.

They all ate at the same tables, shared the same secrets, and looked forward to a future they believed they would build together. No one looking at the bright, sun-drenched courtyard eight years ago could have predicted the cold, silent war that was waiting just around the corner.

FLASHBACK ENDS

"If Chae-won is right, and the initials are a digital trap," Da-eun said, breaking the silence as she looked at the blank laptop screen, "then we can't use any modern search terms. But what about the things that existed before the wipe? Before the Kims built the firewall?"

Rora’s eyes lit up. She shifted in her chair, her fingers tapping thoughtfully against the desk. "The old alliance commemorative yearbook. The one from the decennial gala eight years ago. Every family got a physical, heavy-print copy. It had timelines, property maps, and profiles of every major executive and asset shared between the four houses."

"In-ah has old boxes from the move stored in the attic crawlspace," Da-eun whispered, leaning forward. "If there’s a physical copy left anywhere, it’s up there. A printed book doesn't have an IP address. The Kims can't put a digital tripwire on ink and paper."

Without wasting another second, the two girls crept out of the bedroom, utilizing the absolute privacy of the empty house. They navigated the dark hallway by memory, avoiding the creaky floorboards until they reached the pull-down ladder leading to the attic.

Upstairs, surrounded by dusty storage bins and old furniture, Rora shone her phone’s flashlight over the stacks. They began systematically pulling open the cardboard boxes, searching for a relic from a time when the four families stood together in the light.

Deep in the corner of the musty crawlspace, behind a stack of old textbooks and a broken desk lamp, Da-eun’s fingers brushed against something heavy and bound in thick, textured fabric.

She pulled it into the beam of Rora's flashlight. It was the decennial gala book—a luxurious, silver-embossed volume given only to the inner circle of the four families eight years ago. The cover bore the original unified crest of the Kim, Jung, Park, and Lee alliance, completely unmarred by the paranoia that would later rip them apart.

Rora knelt beside her, the dust motes dancing in the cold light as Da-eun carefully opened the crisp, heavy pages.

Inside were vibrant, full-color photographs of gala dinners, ribbon-cutting ceremonies for the academy, and candid snapshots of the family members smiling side-by-side. It was a stark contrast to the cold surveillance footage they had been staring at for weeks.

But as Rora slowly flipped toward the back appendix—the section detailing the original real estate boundaries and foundational asset grids of the central courtyard—she noticed something strange.

A single page near the blueprint schematics had been neatly, surgically sliced out with a razor blade. Only a tiny, jagged strip of paper remained near the binding.

"Someone got to this before it went into storage," Rora whispered, tracing the clean cut with her fingernail. "In-ah? Or maybe someone else before we even moved here."

"Wait," Da-eun said, pointing her phone light closer to the gutter of the book. "Look at the page before it. There’s an indent."

Because the book had been pressed tightly in a storage bin for years, the heavy ink from the missing page had left a faint, ghostly mirror impression on the opposite white margin. It wasn't a digital file, and it couldn't be scrubbed by Min-jun's network filters.

It was a printed list of old, off-grid storage facilities located right beneath the academy's foundation—structures that existed long before the Kims turned the courtyard into a biometric trap. And printed right at the top of that mirrored, faded text was a physical location code: Sector-04, Sub-Level B.

They hadn't looked at the initials. They hadn't touched the Kim network code. But holding this dusty, forgotten book in the dark attic, they had just found a physical backdoor into the past that the alliance completely forgot to erase.

CHAPTER ENDS