I ended up visiting my in-laws with my wife. My mother-in-law, Yuuka, who is divorced and lives alone, has large breasts and a great figure—she's too beautiful to be called 'mother.' But I know she's having an affair with a married man, and I've seen her masturbating in the bathroom. Taking advantage of a moment when we were alone, I decided to make my move using this information as leverage, but my wife came home and foiled my attempt. Now, reason can no longer hold me back, so I plan to sneak into her room at night while my wife is asleep...
