परिचय: Li Wen, a programmer, deliberately approaches Gu Ting to get close to her father, the fiercely protective Gu Yan. Playing on Gu Yan's devotion to his daughter, Li Wen persuades the seasoned ex-tough guy to go undercover with him inside a telecom fraud syndicate, using their cover as programmers to uncover the truth behind Li Wen's fiancée's mysterious death. Together, they gather evidence against the syndicate's kingpin, Yan Li, and hand it over to the police, ensuring the criminals face justice.