My wife is my neighbor's mistress. (Kato Hino NACR-876)

My wife, "Fei Nai," and I were living a harmonious life... at least that's what I thought. One day, I came home early from work and found a pair of unfamiliar shoes at the door. I peeked into the living room and saw my wife having sex with the neighbor's man—a side of my wife I had never seen before. Worse still, I found photos on her phone showing her obediently following the neighbor's instructions. Later, when I came home late, I lied and secretly peeked into the bedroom...