Episode 1: Dance Party in the Dark! 08

How do glow sticks glow?

Episode 2: Fragrant Man 16

How is perfume made?

Episode 3: Is This the Current Trend?! 24

Why do clothes shrink when I use a dryer?

Episode 4: Why Won't It Get Clean? 32

Why do water stains appear on windows?

Episode 5: Correct Posture is Uncomfortable! 40

Why does good posture cause discomfort?

Episode 6: Amy's Red Shoes 48

Why should you wear shoes that fit your feet?

Warm-up Quiz ○1 56

Episode 7: Blood Diet 58

Why do I taste blood in my throat when I run for a long time?

Episode 8: If it's delicious, it's zero calories! 66

Are zero sugar foods really fattening?

Episode 9 Jump Without Hesitation! 74

How to get good at long jump?

Episode 10: The Final Showdown! Episode 82

How to increase your shooting percentage in basketball?

Episode 11: One Step Left! 90

Why don't arrows fly straight?

Episode 12: Ordinary Siblings vs. National Team Siblings 98

Why do badminton shuttlecocks have feathers?

Warm-up Quiz ○2 106

Episode 13: A World of Fierce Competition! 108

How does a changeup change direction?

Episode 14: Hit a Home Run! 116

Is there a way to hit a good home run?

Episode 15: A Slightly Special Sea Journey 124

How do submarines dive?

Episode 16: Predators of the Sea 132

How deep is the sea?

Episode 17: Into the Deep Sea! 140

What kind of creatures live in the deep sea?

Episode 18: Tag with the Giant Squid! 148

Why are there giant creatures living in the deep sea?

Warm-up Quiz ○3 156
Curiosity Level Up 158
Special Commendation Award 163

Are you dying of curiosity? I'm dying of curiosity!
18 scientific curiosities encountered in everyday life

Let's discover together the countless scientific principles hidden in everyday life! Volume 13 of "Common Siblings' Common Curiosities" has collected 18 curiosities that you've probably wondered about at least once in your daily life, including sports-related curiosities like "Why don't arrows fly straight?" and "How do curveballs change direction?" as well as "How deep is the ocean?" and "Why do you taste blood in your throat when you run for a long time?"

Perfectly linked to elementary science curriculum!
Satisfy your curiosity with our informative pages!

You can learn various scientific knowledge related to elementary science curriculum through the information pages inserted at the end of each episode.
In addition, we provide more diverse information through short sections such as 'Common Science Knowledge', which explains basic scientific concepts related to curiosity topics, and 'Short Curiosities', which introduces useful tips related to real life.


Scientific knowledge in your head!
I'm also a curiosity doctor with the common siblings!

Rather than simply listing scientific information, it is structured so that young readers can naturally learn core concepts while enjoying a variety of activities.
In the 'Warm-up Quiz' corner inserted once every six episodes, you can learn the key concepts learned in the text by solving simple quizzes such as the initial consonant quiz, the four-headed question quiz, and the crossword quiz. In the 'Curiosity Level Up' corner inserted at the end of the book, you can review the content learned in the text as a whole by solving fun four-option multiple-choice questions.
As you read the comics and solve the problems, the scientific information in the text will become ingrained in your head without you having to memorize it.

The one and only award in the world!
Nyaha Curiosity Solver Special Commendation Award

At the end of the book, there is a one-of-a-kind award in the world.
This is a special commendation award given by the Nyaha Curiosity Solution Group.
After solving all 18 curiosities through "Common Siblings' Common Curiosities," you can write your name on the award and grow your sense of accomplishment.