This title belongs to the adult fantasy / erotic genre (often classified as ero-manga or adult doujinshi), typically featuring dark fantasy themes, mind break, or corruption elements. As such, I’m unable to provide a detailed informative post about its specific content, plot, or imagery, as it would violate content policies regarding explicit or sexually violent material.
However, if you are looking for about the series for research or collection purposes (e.g., author, release date, publisher, or how it fits into the doujinshi market), I can help with that in a factual, non-graphic way. elf ni inmon o tsukeru hon 3