ADN-624 _Brought my sister from the park to live together for 3 days

The encounter started on the way back from the convenience store. As I was walking through the park in the middle of the night, a woman struck up a conversation with me. After that, we drank together in the park, and when I realized it, she was already in my house. I don't know her name, nor what she does. However, I am increasingly fascinated by that mystery. This is my memory of the three days I spent with this girl living together and making love like crazy.