My wife is my neighbor's casual sex partner. (NACT-087)

My wife, Rinne, and I were supposed to be an enviable, loving couple. One day, I finished work early and came home feeling a bit cheated, only to find a pair of unfamiliar men's shoes in the entryway. With a bad feeling, I peeked into the living room, where my wife, with an expression I'd never seen before, greedily devoured the neighbor's penis… Although I wanted to look away, my legs felt glued to the ground, unable to move. Anger, the shock of betrayal, and an inexplicable restlessness swirled deep within my chest. Furthermore, on my wife's phone, there was a video of Rinne obediently offering herself to the neighbor, following his orders. I realized I couldn't look away from the screen. In a state of self-loathing and excitement, I lied and said, "I'll be working late today," and decided to investigate—.