Written by Kang Jung Yeon and Illustrated by Boram

The author who has understood the minds of children in children’s point of view, has finally come to us with the main character, ‘Zero’, who is full of secrets. Unlike adults scared of upcoming new year, children are getting excited when they get a year older. Children expect that they can do more things when they become teenagers. However, Zero realized that things do not go along as she expected right after she became 11 years old and she finally faced with unknown advice from adults, but she could not just give up! She wanted to make her own life as a 11-year-old girl, so she finally opened the first page of her secret note after deep considerations.

This book contains the mind of a child, who wants to accomplish more on her own as soon as she becomes a teenager, in an honest way. Readers will fully understand how she may think while reading about a new semester, friendship, allowance, adults who do not listen to others, etc. Furthermore, this book is full of determinations of Zero, who is willing to try more like the first challenge, the first teenager period, the first secret note, and so on. Therefore, not only passionate children but also somewhat powerless children can be motivated by this book. When they finish reading this book, readers may want to have their own secret gardens.