The past had a nasty habit of refusing to stay buried. For Ada Wong, it was a ghost that haunted every shadow. Years had passed since the Spanish village reeking of rot and fanaticism, where she had severed her ties to Albert Wesker. She had handed him a fake Plaga sample, a calculated gamble that bought her independence but put a target on her back. While Wesker obsessed over Uroboros and met his end in a Kenyan volcano, Ada vanished into the corporate underworld, acting as a freelance stabilizer for the world’s shifting power structures.

It was during these years of "independence" that she first crossed paths with Derek C. Simmons. He was the National Security Advisor, the head of The Family, and a man who looked at the world as a chessboard. Ada had taken a few high-stakes contracts for him—retrieving data from fallen Umbrella outposts—but she had sensed the rot beneath his "gentleman" facade. She had cut ties and disappeared again.

June 27, 2013 – The North Atlantic.

*Against her better judgment, a cryptic invitation from Simmons led her to a high-tech submarine. He claimed to have information regarding a "threat to her reputation." Ada docked her submersible, emerging into the recycled air as a pale specter. She was geared for a surgical strike—her signature crossbow and grappling gun were her only companions. The mission was almost insultingly easy until she reached the command center. She pressed her thumb to a scanner to bypass a lockout. The system chimed with a haunting familiarity: WONG, ADA. ACCESS GRANTED. *

A cold knot tightened in her stomach. She hadn't been here in years, yet the system recognized her biometrics as if she had logged in yesterday. She dove into the server logs. She found a video file from Edonia, December 2012. The footage was grainy, but the figure was unmistakable. It was her—or a perfect mirror of her—clad in a blue dress, directing a J'avo attack on a BSAA unit. She knew, with absolute certainty, she had never been to Edonia.

The submarine shuddered violently. Alarms blared—a "Sanitization Protocol" had been triggered to sink the evidence with her inside. Ada didn’t waste a second. She fought her way through the tilting corridors and crammed herself into a torpedo tube. The launch was a bone-jarring concussion, propelling her into the crushing dark. As she floated toward the surface, her comms device buzzed. Simmons’s voice, smooth and devoid of remorse, filled her ear. He spoke of imminent attacks in the U.S. and China, all to be blamed on the "Leader of Neo-Umbrella": Ada Wong.

Ada’s fingers flew across her device, overriding the torpedo's course. She didn't head for a safe house. She headed for the coordinates she had pulled from the sub: Tall Oaks Cathedral. If Simmons was building a nightmare in her image, she was going to burn the workshop down.

Ada arrived at the Cathedral just as the city above began to dissolve into C-Virus chaos. She moved through the shadows of the underground lab, her eyes narrowing as she saw the "hatching" video—the proof of Carla Radames's transformation. She emerged into the lower catacombs just in time to see a familiar back. Leon S. Kennedy. He was older, harder, and currently fighting for his life alongside a woman Ada didn't recognize—Helena Harper. They were being pressed into a corner by a multi-limbed, shrieking mutation: Helena’s sister, Deborah.

Leon fired, his movements desperate as he tried to protect Helena. Ada didn't hesitate. She fired a grappling hook, swinging through the darkness and landing with a silent grace between the mutation and Leon.

“Leon,” Ada said, her voice cool despite the madness around them. “You always did have a knack for finding the worst company.”

She watched as Leon froze, his gun lowering just an inch as he looked at her.

“Don't get sentimental,” Ada said, raising her crossbow toward the shrieking Deborah.

“We have a problem to solve. And after that, you and I are going to have a very long talk about Derek Simmons.”