Description: A fantasy children's literature classic that celebrated its 40th anniversary in JapanThe entire series has sold over 9 million copies worldwide [The best reading material for elementary school students to practice writing and stimulate creativity] Improve the five reading skills = writing skills + expression skills + comprehension skills + imagination + creativity "Singing the opposite tune" superpowers go out of control, everything becomes so strange! The pencil is twisted into a circle and can't write, the lucky cat is making a gesture to chase away customers, and even the Tokyo Skytree has become bent and shorter. This adventure of reversing the world is both shocking and hilarious! Ze'an from Class 3, Grade 3 is an ordinary primary school student who writes a diary diligently.