Because my grandson wanted to see his grandchild's face sooner, I ended up living with my boisterous father-in-law and my alluring mother-in-law, Miki-san. I wanted to fulfill his expectations, but my wife's obsession with her ovulation days made me frustrated, and I found myself seeking solace on my own more and more. One day, I let my guard down and Miki-san caught me in the act. At first, she seemed sympathetic, but her gaze gradually turned predatory, and I began to experience the true nature of my mother-in-law, who was known as the "Slut of Chiba"...
