Master x Re:master

Kyuu and Nanami are childhood friends and they’re both members of the occult club in school, although Nanami is more interested in it than Kyuu. On day, the club’s chairman Saeka tells them that there’s a really good second-hand shop which might have some occult items in it. The visit the shop and Nanami ends up buying a book called “Grimorium Verum” which apparently allows the reader to summon Satan. On the night of the full moon, Nanami tries to perform the ceremony to call the devil and she actually manages it.