Episode 1: Sometimes I Shed Tears 08
Of all the tears shed in various situations, which are the saltiest?
Episode 2: A Fly in My Head 16
What happens if a bug gets behind your eye?
Episode 3: Can You Sing Well Just by Eating This? 24
Will eating raw eggs make you better at singing?
Episode 4: Is This Really My Voice? 32
Why does my recorded voice sound unfamiliar?
Episode 5: Unexpected Survival 40
Why do we feel thirsty?
Episode 6: Oh my, Sher! Is this delicious?
Why does fruit taste sour when I brush my teeth and eat it?

Warm-up Quiz 1 56

Episode 7: Crack! I think I broke a bone! 58
Why does it make a 'pop' sound when I crack my fingers?
Episode 8: What's the special secret to becoming smarter? 66
Does exercising help you study?
Episode 9: Hiccup! How to Stop It? 74
Why do we hiccups?
Episode 10: Surprise! Why Did I Wake Up? 82
Why do I wake up with a start while sleeping?
Episode 11: Sweet Magic Salt?! 90
Why does sprinkling salt on watermelon make it taste sweeter?
Episode 12: The whole world is full of you 98
Why are ramen noodles curly?

Warm-up Quiz 2 106

Episode 13: This is the best way to relieve stress?! 108
Does eating spicy food really relieve stress?
Episode 14: The Milk Went Wrong in One Day! 116
Why isn't there canned milk?
Episode 15: There's Gum Inside Me 124
If you swallow gum, will it get stuck in your stomach?
Episode 16: Hoho, Cotton Candy That Gets Holes When You Blow on It 132
How to make cotton candy?
Episode 17: "If I eat it within 3 seconds, it's okay?! 140"
Is it okay to pick up fallen food and eat it within 3 seconds?
Episode 18: The Moment the Cookie Bag Opens 148
Why are candy bags so full?

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

Did you know that various scientific principles are hidden in our daily lives? Even the common saying, "It's safe to eat food that's fallen on the ground if you pick it up within three seconds," is based on a scientific principle related to the speed of bacterial movement.
In Volume 1 of 『Common Curiosities of Common Siblings』, we have collected 18 curiosities that you may have wondered about at least once in your daily life, such as, "Does eating spicy food relieve stress?" and "Why are ramen noodles curly?"

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

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 too am 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 initial consonant quizzes, true or false quizzes, and line-connecting quizzes. 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 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』, write your name and grow your sense of accomplishment.