With just two months until my wife's birth, my mother-in-law, Mayuka, came to Tokyo from her hometown to take care of her. Thanks to Mayuka, the atmosphere at home has lightened, but there's still tension between my wife and me. My wife found out I'd been secretly masturbating, and I was in the midst of being banned from masturbating. Meanwhile, I couldn't resist the alluring Mayuka, so I...