In the play, Zheng Xiongren plays Minister Peng, a prison guard in the western prison, who is the shedong where the male protagonist's room is located. Although he often scolded the prisoners, he always cared silently for the prisoners.
When Dr. Gao was on medical parole, Minister Peng saw that he was in such pain that he went to the doctor and asked for a faster way to deal with the condition. Although he ate instant noodles, he still bought a nutritious meal for Dr. Gao.
When Dr. Gao was depressed because of the former company, Kim Min-chul took advantage of the cleaning of the two people to enlighten Dr. Gao, so he asked Minister Peng to go to the balcony, although Minister Peng said on his lips, "Are you crazy?" Do you when this is the hotel? But he still let them go to the balcony and secretly took cigarettes for them. When the whole cell knew about it, they were thinking about how to help Dr. Gao, and Jiang Zhejiu told Dr. Gao that if he would find an opportunity to record, and then threaten his boss with the recording, thus extorting a large amount of money. Although Minister Peng, who eavesdropped, said that he was reluctant to help, Dr. Gao and his fellow inmates tacitly felt that the matter of recording had been solved, which showed that Minister Peng was really very kind.
Hearing Dr. Gao successfully induce his boss to tell all the facts of the crime, and when he left the meeting, he loudly reprimanded his boss's expression really played this role of some gossip, knife mouth and tofu heart.