Written by Lee Yong Po and Illustrated by Kim Sook Kyung

This is a pleasant story about conflicts happening at school and home while ‘balloon virus’ is spreading, which makes people ride on air when people imagine good things. This story provokes the sympathy by criticizing the oppressive reality where people do not respect the personality of each child.
Somewhat strange things happen to the main character, Lee Soo, these days. A frog tries to eat Lee Soo, and a mosquito big enough to be equal to an eagle tries to bite people. And when Lee Soo visits the hospital, a doctor who looks like an orangutan tells him that he gets infected by a balloon virus. The school is also filled with children infected by the balloon virus…… Unlike children enjoying their ride on air like balloons are so excited, adults are struggling to recover the disease. Can children save the balloon virus?
This book provides readers with satisfaction by getting out of the reality where adults only focus on study, and it also gives us the second opportunity to think of the real happiness. The painter adds the fun to read this book through a creative interpretation on the work. The scene, which a disappeared principal comes back from the opposite side of the earth described by the imagination of the painter, makes the brain of readers soft and flexible.