author
Known today through classic Chinese fiction preserved by Project Gutenberg, this pen name is attached to works such as A Play Within a Play and Bi Mu Yu. The surviving record is slim, which gives the author an air of mystery as well as literary charm.
Aiyuezhuren, also written as 愛月主人, is the pen name attached to several classical Chinese works available through Project Gutenberg, including A Play Within a Play (Xi Zhong Xi) and Bi Mu Yu.
Reliable biographical details about the person behind the name are hard to confirm from the sources I found. In library and ebook records, the name is presented as an author credit rather than a fully documented modern-style biography, so it is safest to treat Aiyuezhuren as a historical pen name associated with traditional Chinese storytelling.
That uncertainty is part of the interest. For readers, the name points less to a well-recorded life story than to a body of older Chinese literature that has continued to circulate, be preserved, and find new audiences in digital archives.