It looks like you’re referencing a specific adult audio or game title from a Japanese doujin circle (typically sold on platforms like DLsite), indicated by the “RJ� number (e.g., RJ123456).

-eng- Lost In The World Of Succubi -v1.0.1- -rj... -

It looks like you’re referencing a specific adult audio or game title from a Japanese doujin circle (typically sold on platforms like DLsite), indicated by the “RJ� number (e.g., RJ123456).