Since the modern age, the image of the `Hyeonhaetan(玄海灘)` was positioned to Korean people as a passage to an empire, a place of racial suffering, and the world of romantic romance, etc. By the way, the moving experience of Hyeonhaetan has a close relationship with the identity construction process of colonial subjects placed under the law of an empire. In the moving process to the Hyeonhaetan, the colonial subjects get to experience a process that corrects their identity as `Joseon people` called by the law of an empire by transcending the class, gender and position, etc. And the governing technology as well as self-technology were also realized at the same time. This was realized through a Busan-Shimonoseki ferry(關釜連絡 船), which is a `contact zone` that colonial Joseon people and imperial Japanese people can be crossed each other in aspects of the class and gender. Namely, the colonial subjects went through a process that re-establishes in the class and gender layer, not racial layer through this contact. The identity transformation and renewal, construction and correction processes of colonial subjects placed in front of the law of an empire surrounding the Hyeonhaetan were continuously reappeared when student soldiers go to war in the latter half of the colonial period or in case of returning to Joseon for the Period of Liberation. Since the Liberation, the law of an empire was replaced with the law of a nation-state, but the space of the Hyeonhaetan still became a place of purification techniques of postcolonial subjects.