Most versions of this series include multiple endings based on the player's choices throughout the "Netou" (cuckolding/infidelity) scenarios. Significance of the V11A Update
I'm unable to verify whether this refers to legitimate commercial software, a pirated/cracked release, or adult content. I don't have access to databases of RJ codes to confirm what this specific product is. dai chichi hitozuma netoudan v11a rj01316416 patched
Enter "RJ01316416" directly into the DLsite search bar to find the official developer page. Most versions of this series include multiple endings
If you are looking for specific changelogs for v11a or troubleshooting the patch: Official Store DLsite Product Page a pirated/cracked release
Ensure you have the base game installed. This patch is incremental and requires the original game files to function.