The Haunted Bookstore - Gateway to a Parallel Universe manga volume 3 features story by Shinobumaru and art by Medamayaki.

Now that Suimei has moved out of the haunted bookstore, Kaori insists that she only misses the extra rent money—not Suimei himself. But when Tamaki, the story-seller, asks her to deliver a bundle of books to the southern islands, Kaori jumps at the chance to drag Suimei along!