Book Introduction
The first domestic children's story to reach 200 editions, surpassing 1.5 million copies sold!
A representative work of Korean children's literature celebrating its 25th anniversary
Introducing the newly illustrated edition of "The Bad Children’s Certificate"

Published in 1999, "The Bad Children’s Certificate" has become a hallmark of Korean children's literature, achieving 200 editions and over 1.5 million copies sold. Its timeless message and heartwarming story continue to resonate with readers even after 25 years. In 2024, as it marks its 25th anniversary, this classic is being re-released by Sigong Junior. With its delicate psychological portrayal, profound themes, and moving conclusion, the beloved bestseller "The Bad Children’s Certificate" captures the hearts of readers. The vibrant and artistic illustrations by artist Sansa, combined with the sensitive and warm writing of author Hwang Sun-mi, will provide deep emotional resonance for both children and adult readers alike.