Gregory Horror Show: Another World is a Manga/Manhwa/Manhua in (English/Raw) language, SUGGESTIVE series, english chapters have been translated and you can read them here. You are reading Gregory Horror Show: Another World chapters on ManhwaZ, fastest updating comic site. The Summary is
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.