The girl met in the park overnight and the ending

On the way to school, I saw a cat lying on a stone bench in the park. When I was going back from school, I intended to stop by to see the cat again but couldn't find it anywhere. Instead, there was a beautiful girl with a bruise on her face. That evening, when I went to buy wine at the grocery store, I saw the girl from this afternoon still sitting in the park. I approached her to offer a drink, and she happily accepted and suggested we drink at my place. I didn't know who she was or what she did, but for some reason, I couldn't stop caring about her.

That night, Miu took the initiative to invite me, citing "overnight fee." In the following days, we were always together until one day when I returned and couldn't find her. It turns out she lived in the house of a man upstairs. He often abused her, causing her to leave. She didn't want to bring trouble to me, so she decided to return to her hometown in Fukuoka...