Whoever Steals This Book (Light Novel)

Mifuyu is a high school student living with a large collection of books left by her great-grandfather-the vast library known as Mikura Hall. Although her father is the current caretaker, Mifuyu herself doesn't share her family's passion for literature.- But when several books are stolen from the library, triggering an ancient curse, the town is transformed according to the various stories-and the only way to put things right is for Mifuyu to catch the thief. With the help of a mysterious girl named Mashiro, Mifuyu sets out on an adventure through the different story worlds!

Nowaki Fukamidori, Michael Blaskowsky