Kadokawa
From Transformers Wiki
Kadokawa Shoten Publishing Co., Ltd. (株式会社角川書店, Kabushiki-gaisha Kadokawa Shoten), usually Kadokawa Shoten or Kadokawa, is a well-known Japanese publisher based in Chiyoda, Tokyo, established in 1945. Manga titles include the Slayers series, the Sgt. Frog series, and "Cowboy Bebop: Shooting Star".
The manga magazine Kerokero Ace is published by Kadokawa.