Worried about my pregnant wife, my mother-in-law Rinka came up from the countryside to Tokyo. I thought that with her support, our marital relationship would improve, but I ended up escalating my wife's anger by bringing up the topic of masturbation. She even issued a ban on it, saying she couldn't stand me being the only one suffering. A few days later, while feeling restless, I caught sight of Rinka's naked body in the changing room after her bath. Noticing something amiss with me, Rinka offered to listen to my story in detail…
