Jiang Yuyan is a professor of psychology, a well-known intelligence agent on the dark web called "Venomous Snake", and an ace agent of the National Security Agency. He has multiple identities, each of which is seamless, and each mask hides sharp fangs. When a traitor under the banner of "reform to save the country" surfaced, Jiang Yuyan discovered that this traitor was actually his most trusted mentor. Faced with the conflict of ideas and the crisis of the country, Jiang Yuyan must choose: Should he protect the hypocritical mentor-disciple relationship, or tear off the last layer of disguise and use the most vicious means to protect the country? In this war without gunpowder, he will use the fangs of poisonous snakes to bite through all lies.
