Set against the cutthroat corporate landscape of Seoul, Villainess: Queen of Streaming follows the dramatic unraveling of Chairman Seo's powerful empire at the hands of an anonymous digital mastermind. Using deepfakes, viral content, and a mysterious server known as Gloria, this unseen orchestrator wages a high-tech war on public perception, dismantling a decades-built legacy one leaked secret at a time. A diverse ensemble gets swept into the chaos, from forensic investigators to shadowy operatives, each with their own stakes in the scandal. But the central mystery isn't simply who is behind the attack, it's why. Justice, revenge, or something far more calculated? With millions watching, Seoul's screens become both courtroom and colosseum in a battle that could reshape everything.