Given the red flags — no official release, two mismatched actresses, a taboo title, and a split-file container — it is highly likely that:
(rare for .001 extension, but possible)
If you are posting to a community of collectors or digital archivists, use a structured format: [Archive] MAXD-08: Aya Fujii - The Dog Game 2 File Name: MAXD 08 Aya Fujii The Dog Game 2 NEW.avi.001 Starring: Aya Fujii MAXD 08 Aya Fujii The Dog Game 2 NEW.avi.001 Chiara Buono