Yun Hongshen didn't get any useful clues from the suitcase, so he and Yun Hongqi sent the suitcase back to Milan, wanting to ask for some details.However, his father's death had a great impact on Milan. Yun Hongqi was there to comfort him. Milan inadvertently revealed some details of his father's life, which inspired Yun Hongshen to crack the code book.Milan solemnly asked the Yun brothers to help find the murderer. After the Yun brothers left, Milan's expression changed meaningfully.Zongfang ordered himself to be an insider planted by the military commander. Taking advantage of Yun Hongshen and Yun Hongqi's participation in the charity party tonight, he secretly went to Yun's house to look for the code book. However, Yun Hongshen saw through it and arranged in advance for Mrs. Yun and Jingyu to stay temporarily.Yang Ziming's home, and discussed with Wen Yeming to send military commanders to prepare an ambush at Yun's house in advance.Yun Hongshen and Wen Yeming discovered that more than ten people were smoking punch cigars at the party. They had no choice but to search for the source of the cigars to see if they could get any clues. At this time, they received news and ambushed the Yun family.The operation failed, and they left the scene immediately, and unexpectedly saw Kawashima who killed Bago.Yun Hongshen and Wen Yeming immediately pursued them. After a battle, Yun Hongshen allowed Kawadao to escape in order to save Wen Yeming.They rushed to Yun's house and all the agents of the military command were killed. Based on the situation at the scene, they deduced that the murderer was an insider of the military command and was shot in the left leg during the battle. However, they checked the legs of all the agents of the military command and found that no one was injured.