Episode 1: The Secret to a Good Night's Sleep 08
Why does insomnia occur?
Episode 2: I Want to Be Flexible! 16
Why do my thighs hurt when I do leg splits?
Episode 3: The Final Storm Suction 24
Will drinking carbonated beverages help when I have diarrhea?
Episode 4: Scars of Glory 32
Why do blisters form?
Episode 5: Puppy Rescue Operation! 40
How do telescopes make distant objects visible?
Episode 6 Please Take Care of My Refrigerator 48
How does a refrigerator keep things cool?

Warm-up Quiz ①1 56

Episode 7: An Eye for an Eye, a Nose for a Nose 58
Why does it hurt when water gets into my nose?
Episode 8: Don't Come Anywhere! 66
How to make water slide rides more thrilling?
Episode 9: A Showdown Between Two Proud Geniuses (74)
How do people float on water?
Episode 10: The Ordinary Siblings' First Health Checkup 82
How do X-rays take pictures of bones?
Episode 11: Challenge! Trampoline Master 90
How can you jump high on a trampoline?
Episode 12: Sports Center in the Dark 98
How does a flashlight work?

Warm-up Quiz ②2 106

Episode 13: The Ordinary Siblings' Time Travel 108
Why do people age?
Episode 14: Heroes Starting Today! 116
What is the identity of the dust that sometimes floats before my eyes?
Episode 15: Ask Me Anything! 124
What kind of system is artificial intelligence?
Episode 16: The Ordinary Siblings Who Became Astronauts 132
How was the universe born?
Episode 17: Beware of the Trash! 140
Is there trash in space?
Episode 18: Guardians of the Earth, The Common Siblings 148
What would happen if an asteroid collided with Earth?

Warm-up Quiz ③3 156
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

Just like the universe is full of mystery, our daily lives are also filled with puzzling questions.
In Volume 12 of 『Common Siblings' Common Curiosities』, we have collected 18 curiosities related to space, such as 'How was the universe born?' and 'What would happen if the Earth collided with an asteroid?', as well as 'Why do blisters form?' and 'Why does it hurt when water gets into your nose?', which you may have wondered about at least once in your daily life.

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 "The Common Curiosities of the Common Siblings," you can write your name on the award and grow your sense of accomplishment.