Postmodern sense of art is the expression of a manner which replaces the reason with senses and feelings. While modernism confines the artist to positivism and charges him in the way of founding the future, the artist deactivates the reason and directs to past rather than future in postmodernism. This concept, which sets out from the view of history repeats itself, does not pursue any mission. The only thing that it wants to do is to make the aesthetic pleasure of the past a guide for today's contradictory people. As the time and place has lost their own concepts, the human being, who has been alienated to himself and the society in which he lives and has become a part of worldly order, does not bear any hope concerning the future. "Yarın Yapayalnız", to which we have tended the analysis, focuses upon the story of such a human being. Selim İleri, the author of that work, states that the real artist is the man who has realized the time from past to future, and he believes that determined and emphasized settings, regulations and rules rasp the personal views. Therefore, he tends to a sort of novel understanding which does not embody only and real truths instead of regular novel type. The author has caught the principle of rewriting of postmodernism through the metafiction and intertextuality techniques, and in doing so he transforms the writing action into a motif of novel. The author, who chooses his cast from the uncommon people of the society, handles the fragmented personalities and dilemmas of these uncommon people in conformity with disconnections and ambiguities in the concept of time and place. Even if the author has mentioned about certain personal and social themes, he has not become whether advocator or adversary of those themes. As a result, the author, who has avoided from establishing the novel only from his point of view, has caught the pluralism sense of postmodernism. This study tends to analyse how and why Selim İleri performed the above mentioned postmodern manner in his Yarın Yapayalnız rather than what he told in that novel.