Sex with the schoolgirl who lives next door so that her parents won't find out

I just went to work without any goals. Of course she doesn't even have any friends... I had lived such a stimulating life, but after a small inspiration, I ended up moving. Next to the place he moved to was a high school girl who lives with his mother. He apparently lost his father when he was a child, and he seemed to have overlapped with the image of himself as a father. Before they knew it, they had come to the house and could no longer hold back, and the two began to have a physical relationship so that their mother wouldn't find out, and...