Old Mrs. Yun asked Yun Hongqi to help her find the donkey-hide gelatin she wanted to give to Milan, believing it was good for young women. As they left, Milan encouraged Yun Hongshen to ask her anything, promising to answer truthfully. Yun Hongshen inquired about any small habits or unknown taboos her father might have had. He emphasized things others wouldn’t know. Milan revealed that her father disliked the number four, always ate the food he disliked first, saving his favorites for last, and ate rice with soy sauce in private, though never in front of others.
Pondering Milan’s words, Yun Hongshen realized this was Bage’s pattern. Milan asked if he was investigating her father’s case and offered her help, determined to avenge him. Yun Hongshen assured her it wasn’t necessary, as he would soon find the culprit. Based on Milan’s information, he successfully deciphered Bage’s code. It was as if he saw his father telling him this was just the beginning. Yun Muzhi encouraged him not to fear the enemy, reminding him that even the strongest foe had weaknesses and that facing them head-on was the key to success. Yun Hongshen wondered if he would truly succeed, but there was no answer.
Wen Yeming noticed Ke Jingping sitting on the sofa, looking dejected. She asked what was wrong. Ke Jingping confessed that he was under immense pressure from Chongqing and inquired about Yun Hongshen’s progress in deciphering the codebook. Wen Yeming replied that Yun Hongshen seemed to have a lead but didn’t trust them and was doing things at his own pace. She urged Ke Jingping to reconsider his decision to let Yun Hongshen join the military command, believing it was a good idea. Ke Jingping expressed confidence in his judgment. Wen Yeming argued that Yun Hongshen was too unpredictable and questioned whether Ke Jingping sensed his hostility towards them. Ke Jingping countered by asking if taming a wild beast wasn’t rewarding, vowing to make Yun Hongshen join the military command with his head bowed.
Just as Yun Hongshen suspected Li Miaohan had a reason for getting close to Jin Guoqiang, the deputy commander, Yun Hongqi arrived with news of Jin Guoqiang’s death just half an hour earlier. Yun Hongshen was shocked that Jin Guoqiang had died right after they discovered his connection to Li Miaohan. He suspected the involvement of another mole within the military command, as Wen Yeming’s investigation must have alerted the traitor. As they were discussing this, Jingyu rushed in to inform them that Wen Yeming was there to take Yun Hongqi away. They went to the living room and found Wen Yeming with her agents. She accused Xiao Huang, a military command agent, and a shop owner of selling state intelligence, claiming that Xiao Huang had confessed to illicit dealings with Yun Hongqi.
Yun Hongshen and Yun Hongqi were taken to the military command headquarters. Yun Hongqi urged Yun Hongshen not to give in for his sake. Yun Hongshen met with Ke Jingping, who invited him to join the military command, but Yun Hongshen refused. After he left, Wen Yeming questioned Ke Jingping about Yun Hongshen’s true intentions and why he hadn’t seized the opportunity. Ke Jingping explained that if Yun Hongshen had agreed readily, it wouldn’t have been convincing.
Ke Jingping and Ling Han agreed it was time to apply more pressure on Yun Hongshen. Suddenly, a downpour caused a building at the girls’ school to collapse. Old Mrs. Yun insisted on seeing the damage, despite Yun Hongshen’s concerns for her safety. He offered to go alone, but she insisted on seeing the damage to her grandfather’s legacy. As they arrived at the school, another section of the building collapsed. Amid the chaos, Bai Qingkui’s men arrived and carried someone away in a sack. Bai Qingkui, observing the sack, ordered his men to get the old lady some air. To his horror, when the sack was opened, it was his own mother inside.
Seeing Wen Yeming and Ke Jingping at the scene, Yun Hongshen realized Ke Jingping must be involved. He agreed to join the military command but demanded to send information to Chongqing independently. As he was transmitting the information, he noticed he was being monitored, infuriating Ke Jingping.