One of the main characters. For her, the opportunity of getting the inside scoop on a story for Bunbunmaru Newspaper outweighs any consequence. Chasing after a story, she ventured to Suzunaan where she gets sucked into a different world after opening a magical book. She utilizes her speed and long-distance attacks in battle.
The other main character. She gets dragged into the Book World because of the trouble Aya has caused. Only because she wants to quickly return to Gensokyo, she agrees to help Aya investigate the incident and gather information for her story. She dashes and climbs walls on all fours, excelling in close-combat battle.
A girl who lives at Suzunaan, a rental bookstore located in the Human Village. She started this incident by touching a mysterious magical book she found at the bottom of an old, abandoned well. And because of Aya's meddling, they all get sucked into the world of the book. In order to return to Gensokyo, she helps Aya and the others by giving them information about the mysterious book.
The key witness of the nuclear explosion on Yokai Mountain. While being interviewed about that, she gets dragged into this incident. None of that would've happened if Aya's curiosity didn't get the best of her. Unfortunately for Kisume, she lost her bucket when the Book World sucked her into it, so she's pretty restless.
Due to the incident, many of the residents appear because they have been sucked into the Book World as well.
In order to return, they will lend their powers to Aya and the others, while some may even attack...
Gain their cooperation and work with them to get out of this world!