Monsters All over the World Unite and Become a Family

This book is dedicated to lonely children. Each of us is a lonely monster. In a lonely world, we are all a family. Maybe no one will read this book, but I still hope that some people will like it, because... This is the whole world of my monster, so I want the characters in the book to come out and accompany me, so I want to accompany those lonely characters, so that they are not lonely, right? This way I won't be lonely anymore… I really, really love them. Goodbye Yukio, although you left everyone in the book, you have always been with me in my heart. Yukio, good night.