In a sense, the above was modeled after the relation between lords and farmers under which farmers worked at farmlands (cultivation) that were under the rule of lords and pay nengu while being protected by the lords.
これは農民が領主が支配する田畑で労働行為（耕作）を行って年貢を納める代償として領主からの庇護を受けるという関係をその他の領民に拡大したものとも言える。