The lifeline of the country

In an old German-style building that has always been exposed to wind and rain, Director Zhang of the Chengnan Branch of the National Taxation Bureau died unexpectedly, and tens of millions of value-added tax invoices were stolen. Such a shocking case brought out a series of past events of love, hate, grievances and right and wrong. Xiang Jun, a young tax officer who was full of enthusiasm and returned from overseas, was ordered to face the crisis after the branch tax case occurred. In order to prevent the loss of tax money, Xiang Jun began an arduous investigation. The work was very difficult to carry out. The frame-up designed by Hou Sheng'an, the deputy director of the branch, and the interference of Leng Biao, who had a criminal background, made Xiang Jun suffer from enemies from both sides. However, the mysterious appearance of the man in black makes the whole incident even more confusing... Is the suspect a thief within the tax bureau, or someone else? Who is responsible for the death of Director Zhang? Where do VAT invoices go? The young tax commissioner will use his wisdom to unravel the mysteries one by one. Director Xiang Jun, who has a tough and capable style, is deeply attracted to Xiao Xiao, a young and lively girl who has just graduated from the tax school. She is the daughter of Xiao Haiyang, the chairman of the chemical group. The two seem to be a perfect match, but the appearance of another woman makes waves again. She is Yan Xue, Xiang Jun's childhood sweetheart. Yan Xue is now Leng Biao's wife. Faced with such complicated emotions, on one side is the young and beautiful chairman’s daughter, and on the other is the former lover