A married couple runs a convenience store, and the wife seems happy working there. As her husband, I watch her fondly—until one day, I discover she's having a secret affair with part-time worker Kimura-kun. Learning this truth, I begin noticing something off in my wife's expression, and eventually uncover the full reality. She's completely fallen for this younger man, moaning and screaming in ecstasy as she climaxes beneath him. Her disgusting behavior doesn't just crush my pride as a husband—it fills me with deep revulsion. Witnessing my wife's depraved, lustful state shocks me more than ever before, forcing me to confront this unbearable reality.