In the world where superior beings such as Alpha's and Omega's are around. Min-Jun, a Beta, who has been living without existence, meets Yuri, an Alpha, who wants to become an Omega. Yuri offers Min-Jun to be his substitute Alpha, and Min-Jun accepts. Min-Jun who begins to see things and have these feelings tucked inside him, begins to feel his presence in the world for the first time by acting as Yuri's substitute, and gradually he becomes obsessed with a greater desire, and finally, he wanted to become a true Alpha by dominating Yuri, a true Alpha...