About the book: 2021 / High school student Rintaro Natsuki is going to close the second-hand bookstore that he inherited from his beloved grandfather. He likes to read Saint-Exupery and Nietzsche, and not the manga popular among his peers. But one day, on an ordinary day, a talking cat named Tiger appears among the shelves. He takes the teenager on an exciting journey, the goal of which is to save books. Books are in trouble - they need to be saved! And to do this, the heroes will have to go through three mysterious labyrinths and expose those who are only pretending to love books. First from an intellectual locking hundreds of volumes in a closet, then from a professor manically cutting pages with scissors... What awaits young Rintaro and his friend Yuzuki on this path and how can they save all the books that are in danger? Will this unusual couple be able to defeat them??