Yen Press is an American company that also publishes a wide variety of Japanese manga, Korean manhwa, and other international content. However, this company's relation to Black Butler lies with Enix's shonen manga magazine GFantasy, since Black Butler's debut in 2006 the series has been featured in it monthly. That name will likely sound familiar to you as it is best known for its popular Final Fantasy, Kingdom Hearts and Dragon Quest video game series. This company based in Tokyo and founded 1975 specialises in games, anime, magazines, books and franchises. This section serves to cover the most basic facts about the kuroshitsuji manga. 黒執事 (Kuroshitsuji/Black Butler) is a dark fantasy and thriller manga series written by Yana Toboso that has been around for more than 10 years, with its debut being on September 16th, 2006.