The Japanese feudal system can be illustrated as a pyramid, with peasants at the bottom. Peasants were the lowest social class in the feudal hierarchy and comprised the majority of the population.
They were primarily engaged in agricultural activities and were responsible for producing food to sustain the entire society. Above the peasants were various levels of samurai, the warrior class, followed by daimyo (feudal lords), and ultimately the shogun, who held the highest military and political authority in feudal Japan.
This social structure was characteristic of the feudal system in Japan during different historical periods. If you have specific information from pages 159-160, it would be helpful for a more precise response.