The story happened in the desolate desert. There are a huge number of alien creatures (“Big A” in the in the play) living in a restricted military zone. These creatures were hunted by human beings for biochemical experiments in the early stage. Later they were kept in restricted zone. Human beings promised and let Big As believe that they would return to their homeland someday. A Big A with No. 93 found it is not the called disinfecting treatment after it was sent to the disinfecting zone, but a genocide massacre. Under this desperation, it successfully escaped to zone A with its wisdom and tried to tell the other Big As the truth. However, it was doubted and distrusted by its fellows. Someday, a priest slipped into the restricted zone and recorded everything in the restricted zone with his DV. He heard about the conspiracy and plan of human beings from No. 93, but it is too late. He failed to save the Big As. As a loyal believer, the priest felt full of guilt for massacring lives and the sense of duty and responsibility for completing the mission with his life as a soldier. Blamed by the strong inner conflict and conscience, eventually he shot himself with gun as judgement and the final salvation.