In 1937, Peiping fell and undercurrents surged. Shen Yan, the young owner of an antique shop, appears to be a cynical playboy, but in fact he bears the blood feud of his family and country. In an accident, a spy auxiliary system called "Zang Feng" was implanted in his mind. From then on, war in troubled times and silent espionage intertwined into his destiny. The system can analyze intelligence and simulate crises, but it can also issue cold missions, forcing him to wander between loyalty and survival. Dealing between the Japanese invaders, the puppet government, the military and underground organizations, he must use the most exquisite lies to cover the most dangerous actions, deliver top-secret messages during the fight, and hide the fire of saving the nation in antiques and stones. When his faith faces the ultimate test, the last task given by the system actually points to his only weakness... This is a war without gunpowder smoke but heart-breaking at every step. In the silent place, thunder is heard.
