This book is a substantial revision and update of "Hachi: The Truth of the Life and Legend of the Most Famous Dog in Japan" (2013), and is published in commemoration of the ninety-fourth anniversary of Hachi's birthday. This new book has incorporated new discoveries and developments concerning Hachi since 2013, and presents all aspects of the real life of Hachi, as well as of the people who helped him. In so doing, this book addresses all of the major questions about Hachi that have been raised, including the rumors and speculations, and answers them. After all, Hachi deserves a true record of his whole life. In essence, this book has everything that people ever wanted to know about the most famous dog in Japan.