WOWOW's site for the anime has opened:
http://www.wowow.co.jp/anime/mamoru/
I want to clear some stuff up in this post, since I don't want anyone asking these questions later:
first of all
Mamoru-kun ni Megami no Shukufuku wo! is a light novel thats published under the seinen light novel label
Dengeki Bunko and for now there are 8 volumes released of this light novel.
A short story light novel called
Mamoru-kun ni Bangaihen de Shukufuku wo! is published under the same seinen light novel label
Dengeki Bunko and for now there are 2 volumes released of it.
A manga thats based on the original light novel is serialized in the seinen novel magazine
Dengeki hp (which is a magazine that serializes light novels for young men, but it seems that this is the only manga thats serialized in it), and it started recently serializing in the magazine so no volumes out of this manga yet.