The document provides background information on characters and costumes for a Japanese-themed research project. It describes the Japanese imperial family and the role of the emperor. It discusses samurai warriors, their weapons like swords and code of bushido. It mentions geisha and their elaborate kimono costumes. It also describes peasants like a sword maker and koinobori (carp streamer) maker. It discusses Buddhist monks and their triple robe garment. Finally, it provides details on a shishimai costume and samurai swords.