My single plump female boss and I missed out on getting married... ~It was supposed to be a one-time mistake, but I'm drowning in a perfect sex match~

I've been in my current department for a year. Director Ichikawa, who was enthusiastic and capable, was strict with his subordinates, and the police station, including myself, was always surrounded by a tingly atmosphere. But I was secretly excited by the Director's voluptuous body... One day, after going to apologise to my boss and business partner for a work mistake, I went out drinking on the way home. I have reached the limit of patience when I see the feminine side of the chief. After that, I became addicted to a physical relationship with the chief. However, Chief Ichikawa gradually began to avoid me...