Des:Haruki, my childhood friend and first love, suddenly appeared in front of me. I became lustful when I saw her sleeping because she was tired. She noticed this and Haruki comforted me. From that day on, Haruki begins a strange cohabitation life with Haruki, who says that she wants to be my pet. I put a collar on her in order to respond to her sexual tendencies, and I became addicted to her perverted acts...