Prologue: A New Companion?! 8
Chapter 1: Earnest Desire 22
Chapter 2: Leave the best photos! 52
Chapter 3: The New Friend's Identity 84
Correct answer 118

Useful learning! Exciting story! Interesting characters!
A new humanities textbook with all three elements
The "Ordinary Siblings' Unusual World Travels" series!
Read it now!

1.
Learn about the history, culture, and art of your travel destination at a glance.

In today's world, where global awareness is more important than ever, what children, who will lead the future, need most is the knowledge of global citizenship.
For this reason, the ability to understand the humanities of the world, including the history, culture, art, and geography of neighboring countries both near and far, has become essential for children stepping out into the world.


This book presents the vast and complex humanities in a simple and fun way, tailored to children's level.
Basic descriptions of each travel destination are included in the story at appropriate places, allowing readers to grasp only the most important information, such as the country's history, traditions, food, and people, as if they were traveling there.
Additionally, we have increased the completeness of your learning by providing a wealth of reading material by including information not covered in the main text on separate pages.
Through this book, you can learn about and understand travel destinations around the world at a glance within the flow of history and culture.

2.
A special themed trip to develop your humanities knowledge!

The "Common Siblings' Unusual World Travels" series is a collection of books that carefully select tourist attractions from around the world where children can develop their humanities knowledge in a friendly and fun way, allowing them to enjoy a different themed trip for each topic.
In this episode of “The Ordinary Siblings’ Unusual World Tour 4,” the Ordinary Siblings go on a trip to the “World’s Famous Palaces.”
At the Taj Mahal in Agra, India, you will see the Taj Mahal, which has a perfect symmetry like a decal, and hear the love story of Emperor Shah Jahan related to the Taj Mahal, taking a look at Indian history.
At Schönbrunn Palace in Vienna, Austria, explore the vast and beautiful gardens and many rooms that offer a glimpse into Austria's glorious past.
In the Royal Palace of Madrid in Madrid, Spain, you will meet Spain in the days when it ruled over many territories, along with a new friend, Isabel, who suddenly appears.

By visiting the palace representing each country, you can experience the history, culture, and lifestyle of that country vividly and enjoyably.
Embark on a journey with the common siblings to a world of palaces more magnificent and mysterious than any other travel destination.

3.
A fun children's book that won't leave you bored for even a moment.

Many existing children's education books have the disadvantage of only listing difficult and rigid information, which reduces the fun of reading and makes it difficult to finish reading them.
This book features familiar sibling characters as the main characters, lowering the barrier to entry for young readers. It is structured so that information can be easily acquired and understood through the dialogue between the siblings.
Above all, the exciting story is beyond imagination, and various mission stages such as mystery quizzes and maze searches are prepared, so as you carry out missions with the common siblings, you will soon enjoy reading as if it were play.
Furthermore, by the time you finish reading the book, you will find yourself growing not only in your humanities knowledge but also in your creativity, logic, and thinking skills.
Enjoy a fun and special reading time with this fun-filled introduction to children's culture presented by the common siblings.