Reiko Sawamura, my wife's mother, was far more beautiful and sensual than my wife, to the point I couldn't help thinking, "She's actually better..." So when my wife went on a trip, I asked Reiko to watch over the house. I was nervous, completely captivated, unable to think straight. While she helped out with chores, I accidentally—yet deliberately—ended up peeking at her changing. Seeing her lewd body for the first time... though I felt conflicted, I could no longer suppress my desires.