What does the end of the lonely war mean?

The ending of "Lonely War" is that Leng Jianbing was arrested and committed suicide, the party defended the country, the translator of the Soviet Union was arrested, Kang returned to Yan 'an, Chen Xiao gave birth to a pair of children, and Dandan came to the anti-Japanese rear area as he wished.

Xie Yifu got Dandan's jewels and prepared to escape by herself. Kang and Lao Zhao stopped him and exposed him. He took Danny as a threat to protect himself and was killed by Duo San in the chaos. Lao Zhao and Kang were waiting for the Party Weiguo who was arraigned at the designated place. On the other hand, the words and deeds translated by Su aroused the suspicion of the Party Weiguo. When Kang and them arrived, Dang Weiguo was already dead. Oshima said that he was suspected to be a communist. Li Shijie decided to cheat Kang out and give it to the Japanese. An induced conversation between Kang and him on the phone was recorded by * * *. When Oshima was arrested, Kang's total recall was speechless and Leng Jianbing gloated, but I didn't expect that his conversation with him in the suburbs was recorded that day, Leng Jianbing was arrested and committed suicide. Su Translator returned to Yan 'an with Kang, but Yan 'an knew that Su Translator was a spy sent by Japan and immediately arrested him. He also confessed everything. In the end, Chen Xiao wrote down this experience of fighting alone in Yan 'an, and gave birth to a child in Yan 'an. ?