Awkward high school student Rintaro Natsuki is about to close the secondhand bookshop he inherited from his beloved grandfather. For this bookworm by blood, shutting down Natsuki Books is no easy task - it's been his sanctuary and hideout from the demands of school and the world at large. However, before the bookshop's doors are shut for good, a talking cat appears with an unusual request. The feline requests the teenager's help in saving books from abusive and negligent owners, and it won't take no for an answer.

Their mission sends this odd couple on an amazing journey to set books free. Through their travels to strange dimensions, the cat and Rintaro meet a businessman who leaves his books to perish on a bookshelf, a scholar who cuts pages into snippets to encourage speed reading, and a publishing drone who cares only about bestsellers. Their adventures culminate in one final, fantastic challenge - the last labyrinth leads Rintaro down a realm where a certain soul hangs in the balance...

Books, first love, fantasy, and an unusual friendship with a talking cat - The Cat Who Saved Books has it all. Sosuke Natsukawa has written a novel where books are so much more than words on paper. You'll want to follow this "tail" until the very last page.