She debuted with the tankoubon "Show ga Hanetara Aimashou," published by Toukyou Mangasha. Her works have been featured in josei magazines and BL magazines. She has written a book called "Orokamono wa Aka o Kirau" (also published by Toukyou Mangasha).(translated from Shodensha)
Her nom de plume has also been spelled as "est em" by Deux Press and her real name is Maki Satoh. The author's preferred romanization of her penname is not capitalized (esuto emu, maki satoh).
Also a former student of Matt Thorn. Her classmate was Sachiko Takeuchi.
Ugh, I hate this mangakas work, and yet I bought at least a couple of her books. I guess they were supposed to be avant gard but I hate the artwork and stories.