My wife Yuki and I were living happily together...or so we thought. One day, I got home early from work and found unfamiliar shoes at the entrance. I peeked into the living room and saw my beloved wife, who I'd never seen before, devouring our neighbor and his penis. Furthermore, on my wife's cell phone, I saw her following the neighbor's instructions and doing as he said. Later, I lied and said I'd be home late, and peeked into the bedroom...