A recent sociology theory has changed into the one that gave priority from the one to the subjectivity like the subject and the act, etc. that relates gradually to the law like the structure and objectivity, etc. The collapse to which socialist countries of especially 1989-91 year come one after another lost the concern for a social theory of the Marxism. The researcher hits the focus from an objective form of the society to a society people inside by such an average. The theory of the association of macro sociology became unpopular at the end of the 20th century. Sociology has changed from an abstract theory to the analysis of a concrete problem. The public theory comes to offer a new aspect to a social research by such an average.
By the way, the public-private concept of the West strongly influences East Asia in a rapid globalization in recent years. However, there is no hierarchical relationship of moralistic value between the private public in the West unlike the KOU-SHI relation of East Asia. However, the negative sense is included in east Asia like WATAKUSHI's being symbolized in private profit and private advantage. This respect is a point to invent a fundamental difference of the society in the West and east Asia. In this sense, the research of a new society needs the reexamination related to past OHOYAKE-WATAKUSHI(KOU-SHI). In such an average, a public concept of recent Japan has changed from “Existence” into “Function”. This thesis tries to clarify it in above all through the space symbol.