Episode 1: The Brother I Want to See But Can't 08
How do myopia corrective glasses correct vision?
Episode 2 I just closed my eyes for a moment… .
16
Why do we need to sleep?
Episode 3: What is the yellow liquid? 24
Why is urine yellow?
Episode 4: I Can't Take It Off! 32
Why do feet smell?
Episode 5: Will Dreams Come True? 40
Why do we dream?
Episode 6: The Secret of the Deep Eyes 48
Why do double eyelids appear when you are tired?

Warm-up Quiz (1) 56

Episode 7: Fragrant Birthday Party 58
Why do we have diarrhea?
Episode 8: How to Become a Master of Tears Acting (Part 66)
Why do I cry when I cut an onion?
Episode 9: Oil Paper Magic Show 74
Why does my face get oily?
Episode 10: The Magical Yellow Fruit 82
Why does my skin turn yellow when I eat a lot of tangerines?
Episode 11: The Thrilling Electric Sweater 90
Why does static electricity occur?
Episode 12: The Night the First Snow Falls (98)
Why does the sun set early in winter?

Warm-up Quiz (2) 106

Episode 13: The Best is Boiling 108
Why do you get a fever when you have a cold?
Episode 14: Laundry Operation in Crisis 116
How does detergent remove stains?
Episode 15: The Secret of the Cursed Jewel Box 124
How do batteries work?
Episode 16: Make a Wish 132
Why do shooting stars fall?
Episode 17: What Happened at the Ski Resort 140
Why don't my feet sink into the snow when I wear skis?
Episode 18: The Disappearance of the Common Siblings 148
Why does the compass always point north?

Warm-up Quiz (3) 156

Curiosity Level Up 158
Curious, Curious! Event Announcement 162
Special Commendation Award 167

Are you dying of curiosity? I'm dying of curiosity!
18 scientific curiosities encountered in everyday life
A shooting star streaks across the night sky! It looks like a star falling from the sky to the ground, but in reality, a shooting star is a dust or rock drifting through space and then pulled back to Earth by gravity.
In Volume 5 of "Common Curiosities of Common Siblings," we've collected 18 curiosities that you might have wondered about at least once in your daily life, such as "Why do shooting stars fall?", "Why do we dream?", "Why do tears come when I cut an onion?", and "Why is static electricity generated?"
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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.