Question: Arianrhod RPG is a Japanese fantasy role-playing game released in 2004, at present, Arianrhod RPG is one of the most popular traditional RPG in Japan like as Sword World 2.0, and Alshard, a Japanese role-playing game designed by Jun'ichi Inoue, and which organization?
Sentence (from "Arianrhod RPG"): The related books including rulebooks, supplements, replays and novels were published 59 books until November 2010.
Relevant evidence: No