Guan Xue brought Zhuo Wen to the pigeon cage to feed the pigeons and persuaded Zhuo Wen to go to Japan with her, but Zhuo Wen declined.Lao Qian brought Junko's father Nakamura to Director Long's house and asked Director Long to prove that his son died in Unit 731.
In order to avenge his son, Director Long promised Lao Qian and used the alumni association to make an appointment with Dr. Kojima from Unit 731.The security of the Alumni Association is handled by the Secret Service Section.
Pan Yue and Hu Bin discussed that Song Zhuowen would definitely take action at the class reunion, and the two discussed working together to catch Song Zhuowen.Song Zhuowen and Zhuo Wu originally planned to kidnap Dr. Kojima at the class reunion.When Guan Xue saw that Song Zhuowen was not following her, she arranged for a killer to kill Song Zhuowen at the alumni meeting.