His special hobby is eating rotten duck eggs and silkworm chrysalis. When Zhang was young, he fought all the year round. Because the fighting conditions were particularly difficult at that time, he often could not eat fresh rice, which led him to like to eat some spoiled duck eggs. There is another reason. Because of his childhood hobbies, Zhang's father died when he was young, and he and his mother lived together. His food and clothing are average, but his favorite is all kinds of snacks and some pickled foods at home, which are all treasures in his eyes. It is because of his special hobby that his wife and children stay away from him every time he eats.

Zhang's later position and achievements were not smooth sailing, but bumpy. He sold sesame cakes, studied carpentry, slept on the street as a beggar, and finally became a veterinarian. At first, he made a living as a veterinarian. Unexpectedly, he was wronged, beaten and almost killed. It was at this time that the Sino-Japanese War broke out, and Zhang chose to join the army and embarked on a career path.

Although Zhang is a lout, uneducated and rude, he likes gold and silver jewelry and beauty, but he is good at leading troops to fight. He is good at employing people and wooing people, and his men are loyal to him. Zhang, a self-made man, can make a difference in such a sinister environment in the late Qing Dynasty and early Ming Dynasty, and there are many experiences worth summarizing by future generations.

Although Zhang later lived a life of eating delicacies, Zhang, who was used to hard life, did not waste money because of it. He still lives a simple life and insists on his love for rotten duck eggs.