Manga
A manga adaptation of GHS called Gregory Horror Show: Another World by Suzuki Sanami started in the Nov. 01, 2007 issue of Weekly Morning magazine; it was then published as a graphic novel and became available to buy in Japan, on Sept. 22, 2008.
It follows Tooru Takenotsuka, a 22 year old freeter comes to the city to follow his dreams. Thanks to his status he is unable to find an apartment to live in until a seedy real estate agent introduces him to Gregory House.
Read more about this topic: Gregory Horror Show