Passage: Rental Magica (レンタルマギカ, Rentaru Magika) is a Japanese light novel series by Makoto Sanda, with illustrations by Pako. It is in the midst of serialization in The Sneaker magazine published by Kadokawa Shoten. An anime television series adaptation animated by Zexcs was broadcast in Japan between October 7, 2007 and March 23, 2008, airing a total of twenty-four episodes.

Question: who published the magazine?
Kadokawa Shoten