"Onegai Teacher Book 1" by Shizuru Hayashiya is a paperback book in English. It is the first book in the series and is written by the author Shizuru Hayashiya. This book likely follows the storyline and characters of the popular anime series "Onegai Teacher," offering readers a chance to delve deeper into the world created by the author. Fans of the show would enjoy reading this book to continue the story and explore the characters in more detail.