271592
The first bound volume was released by Fujimi Shobo on February 1 , 2007 under Kadokawa Shoten 's Dragon Jr. imprint , with a total of eleven volumes released in Japan as of March 9 , 2013 .
 Fujimi Shobo, Kadokawa Shoten
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fujimi Shobo, Kadokawa Shoten