No, This fanfiction does not follow the story of any game but has elements that are in most of them, and the characters have similar backstories to their counterparts in the games.
While the girl kept her distance, I could see her better, she was a pretty girl well endowed for her short stature, light brown shoulder-length hair, and big blue eyes, she was exactly as the old man ogata described her, she was his daughter Ogata Rizu.