Intelligence Gal-chan Episode 1: The Red Dot in the Noise

In the city's crisis management room, Gal-chan was piling up midnight communication logs one by one. As a single mother, her mornings start early, so her work shifts to the night. Amidst the noise-filled data, a red dot appeared every night at 2:13 AM. The source of the signal was different each time, but the fluctuation of the packets was always the same. After putting her child to bed, Gal-chan updated her statistical models while sipping cold tea. The apparent randomness with hidden regularity always conceals human intentions. The next day, she headed to the maintenance company of the traffic control system. Behind the receptionist's smile, the time on the terminal was delayed by three seconds. Gal-chan noted the discrepancy, thinking, 'The attacker plans to use this place as a relay.' It wasn't intuition, but the timeline that suggested it. At night, 2:13 AM, the red dot lit up again. Gal-chan narrowed down the traffic on the ambushed line and reverse-tracked the disguised packets. The trail led to a data center that was supposed to be out of business, where a group of servers that should have been shut down were still operating. She wrote a single line at the end of her report: 'This incident is not an isolated case. Someone is measuring the city's pulse.' Her child, who had woken up in the porch, was holding her ID card. Gal-chan smiled, took back the card, and prepared for the next night.