Isekai Shuukyou e Youkoso

In dreams, there is a special world where monsters and demons fight for supremacy. It so happens those same monsters and demons are also the objects of cult for religions in the real world. A victory in the monster world means the success of a religion in the real world. Wahowaho is a new religion, aiming for the top, and while searching for their god, they have summoned a clueless human boy.