Posthuman discourse calls for a fundamental shift away from modern anthropocentric thought. This shift stems from the reflection that many of the problems in the modern capitalist world, including climate change, are rooted in anthropocentric attitudes and ways of life. Amid rapid climatic and technological changes, transforming our way of thinking is essential. This paper argues that such a transformation is possible through the exploration of new subjectivities that incorporate the other, transforming the self in the process. It examines how 1930s Korean colonial modernist literature illustrates this search for new subjectivities. Based on this exploration, this paper also concretizes the tendencies and problems in our society, particularly concerning technological fascism, through recent Korean fiction and discusses the significance of the literary imaginations of 1930s colonial Korean modernism in the posthuman era.