On my way to school, I saw a cat lying on a bench in the park. When I came back from school, I intended to stop by to see the cat again, but it was nowhere to be found. Instead, there was a beautiful girl with a bruise on her face. That evening, when I went to buy some alcohol at the grocery store, I saw the girl from earlier still sitting in the park. I approached her to invite her for a drink, and she gladly accepted and suggested going to my place to drink. I had no idea who she was or what she did, but I couldn't help but be drawn to her. That night, she actively invited me over, claiming it was to pay the 'overnight fee.' A few days later, we were always together until one day I returned and couldn't find her. It turned out she lived in the house of a man upstairs. That man often abused her, making her unable to bear it and decide to leave. She didn't want to cause me any trouble, so she would return to her hometown in Fukuoka...