As of my knowledge cutoff date in March 2023, there is no widely recognized author by the name of Drethi Anis. It is possible that Drethi Anis could be an emerging writer, a pseudonym, or a lesser-known figure in a specific literary community or genre. Alternatively, the name might be spelled incorrectly or could refer to a character from a book rather than an author. Without more specific context or updated information, I'm unable to provide a definitive description. If you have additional context or if the person has gained prominence after my knowledge cutoff date, you may want to search for more recent sources for accurate information.