The Kasukabe Bookstore (かすかべ書店 Kasukabe Shoten), known as Nasty Books in the Vitello and Phuuz dubs, is located in Kasukabe. The two staff members communicate through a secret code, which Shinnosuke can easily decipher.
Shinnosuke sometimes hangs out here but he will always ends up causing problems for the staff.
- Misae Nohara, for a day
- Shinnosuke Nohara, also for a day (because he couldn't make his mom stop reading without paying)
- Musae Koyama