I drank too much at a work party and missed the last train. With no money for a taxi, I was about to spend the night at a manga café when my coworker Shiraki kindly invited me to stay at her place. Her husband was posted away for work, so I walked home with her while secretly hoping something might happen. I had a girlfriend, but figured one night would be fine if she never found out. I had no idea a terrifying experience was waiting to make me regret that careless thought…