Isekai Shuukyou e Youkoso!

A world exists beyond dreams where monsters and demons battle for dominance, and these same creatures are worshipped in various religions in the real world. Success in this monster realm translates to influence for the corresponding religion. A new religious group called Wahowaho seeks to rise to prominence and, in their search for a divine figure, has summoned an unsuspecting human. Toda Yuu, a boy attending a fan convention with his sister, was excited for an event related to his favorite mobile gacha game featuring gods. However, after falling asleep, changes began to occur in the real world.