K2 doesn’t kill Kang or turn him over to Yoo-jin’s merciless security chief. He knows that would create a martyr and a trust vacuum. Instead, he brings the evidence to Yoo-jin in private and makes a business argument , not a moral one.
This story takes place during the time jump in the original series, shortly after Kim Je-ha (K2) begins working as a bodyguard for Choi Yoo-jin. He has proven his physical worth but not yet his strategic value. The K2
Choi Yoo-jin’s security apparatus is being compromised. Not by bullets or bombs, but by information. A rival faction within JB Group is using a sophisticated data leak—small, untraceable fragments of logistics reports—to anticipate Yoo-jin’s every move. Her private shipments are intercepted, her off-the-record meetings are ambushed, and her digital fortress is showing cracks. Her usual cyber team is baffled. They see the leaks but cannot find the source. K2 doesn’t kill Kang or turn him over
K2 doesn’t confront him. Instead, he uses a simple, analog trick. He asks Yoo-jin’s permission to stage a fake “crisis”—a simulated product recall that requires last-minute changes to a shipping manifest. Only three people receive the fake manifest. Within two hours, the rival faction acts on the fake information. This story takes place during the time jump
The Ghost in the Machine
Yoo-jin, impressed by the strategic cunning, agrees. Kang’s daughter gets her medicine. Kang becomes a double agent, feeding poisoned data to the rival faction. Within weeks, the rival faction’s operations collapse because they were acting on lies.