||This map shows the deployment of forces ready to attack Hara Castle. On the verso side of the rightmost end of the paper, a slip of paper is attached saying: “Map of the Battlefield at Hizen Shimabara” and “In the custody of the former storage room.” The map shows various military structures, including mounds, provisional watchtowers, fences, and trenches. The vermilion line indicates the route taken to the castle for the final attack. It is probable that the black ship anchored off the coast is a Dutch ship. Although it is not said, we assume that the map was produced based on the report of warriors sent by Ikeda Mitsumasa.