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double-sided shell
double-sided shell
Description
Book Introduction
A word from MD
Kim Cho-yeop's brilliant exploration of others and the world
Kim Cho-yeop, a leading Korean science fiction writer, has returned with a new collection of short stories.
These seven short stories explore the essence of humanity from various angles, each shining with a different color and warmth.
This young writer's invitation to understand the beings beyond, while portraying a world more unfamiliar than anyone else's, will bring us deep comfort.
August 29, 2025. Novel/Poetry PD Kim Yu-ri
“I couldn’t wait any longer.
“I had to come see you now.”

Recommended by Kim Bo-young, Bae Myung-hoon, Lee Da-hye, Jeong Bo-ra, and Jeong So-yeon

Discovering sparkling sadness and boundless love
Kim Cho-yeop's third novel collection in four years

Aren't our limitations, our yearning to understand beyond our borders and our struggle to effectively communicate our feelings, also a faint light and possibility we possess?
I think the novels contained here can be said to be stories that try to look at its limitations and possibilities from various angles.
(From an interview with Kim Cho-yeop)

Author Kim Cho-yeop, who is considered to have written a new history of Korean science fiction in the 2010s, returns to us in the summer of 2025, marking the 8th anniversary of his debut, with his new short story collection, “Double-Sided Shell.”
As one reader put it, "Each story is completely different, yet it's so familiar and enchanting," Kim Cho-yeop has consistently experimented with novels, while also providing us with a consistently engaging reading experience through her conscientious research and her highly polished stories that delve into the depths of human relationships.

This book contains seven short stories that pose questions about the nature of humanity from various perspectives.
“Subhdani’s Summer Vacation,” which deals with the issues of desire and will with the provocative question, “If the material of humans changes, won’t the interaction between humans and the world change?” and “The Double-Sided Shell,” which shows the conflict that arises when two personalities existing in one body fall in love with one person, contain the process of understanding and accepting an identity that existed outside of society’s norms of “normality.”
The works that can be called a "series of exploration," such as "Silence and Turmoil," "Sweet and Lukewarm Sorrow," and "Following the Rain Clouds," deal with higher-dimensional beings, humans who migrated to servers, and parallel worlds that are familiar from science fiction, while also exploring issues with overlapping perspectives such as the limitations of subjective interpretation that humans have, forms of self that cannot be explained in conventional ways, and beings that are fixed through entanglement, adding depth and fun to the novels.
“The Vibrating Bird and the Handwritten Letter,” which deals with a civilization that conveys messages through touch, “You must return at least once.
Under the grandmother's admonition, "You understand? Only then can we move forward," the story of a lost whale and a young man who left for the city overlap in "Saltwater Frequency," a work that also has a tearful punchline at the end of an interesting plot.

Although the way we define humanity changes with the times, the author leaves us with the thought that “if there is a uniqueness we want to give ourselves, a precious value we want to hold onto, it likely lies in the fundamental limitations of humanity.”
Even though there are always differences, and even when misunderstandings and turning away after imperfect conversations occur, there remains a small faith that is never let go until the very end in Kim Cho-yeop's novels.
As always, with a tiny glimmer of possibility.
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index
Subdani's summer vacation
double-sided shell
Vibrating Bird and Handwritten Letter
Salt water frequency
Silence and noise
Sweet and lukewarm sadness
Following the rain clouds

Author's Note | Recommendation

Detailed image
Detailed Image 1

Into the book
“Do you need a special reason to want something?”
“Not necessarily.
But there's usually a reason.
It's not easy to achieve what we want right away in life.
Then, the answer may be to carefully examine what you want and consider alternatives.
“If I know why you need metal skin and what your reasons are, I can help you think of an alternative.”
--- p.26 From "Subdani's Summer Vacation"

Lemon and I's misfortune stems from the fact that we cannot be independent entities.
We may or may not be friends or family.
Because those relationships all arise on Earth, which assumes an independent self within each individual entity.
So then what are we?

--- p.92 From “Double-Sided Shell”

The vibrating birds had their own unique vibration patterns.
The pattern does not convey the information or meaning that you want to convey.
That's the role of accurately recorded language.
But that's not all.
The vibration birds had something other than information.
I could 'feel' it, but I had no idea what its function was.
--- p.124 From “The Vibrating Bird and the Handwritten Letter”

- Grandma, I'm not Mong, I'm Moa.
- Even if I collect all the monkeys, they are all my granddaughters.
There's something I really wanted to ask you, but I couldn't convey it.
- What is that? I'm here now, so just tell me.
- You have to come back sometime.
You see? Then we can move forward again.
--- p.159 From "Saltwater Frequency"

Perhaps that is a sad limitation of human beings.
Humans, who cannot fully hear the unique voice of soulless things, cannot help but imagine their essence by comparing themselves to our own appearance even when we long for the sound of things.
--- p.229 From "Silence and Turmoil"

Immersion is the rule.
Immersion is the act of living as if this world were a physical reality.
Immersion is turning a blind eye to the fact that this world is a lie, and everyone agrees to do so.
--- p.259 From "Sweet and Lukewarm Sorrow"

A person fascinated by other worlds.
A person who is convinced that there is another world.
A person whose eyes shine when talking about that world, and who speaks as if you could touch the air there at your fingertips at any moment.
--- p.338 From “Following the Rain Clouds”

Publisher's Review
Kim Cho-yeop's new novel collection, shining in seven colors
The most accurate temperature we've been waiting for

What Kim Cho-yeop creates is both a story and a sensory experience that will never fade. _Jeong So-yeon (novelist)

It offers hope that no matter what happens in any environment, we can always maintain our fundamental humanity.
Kim Cho-yeop's protagonists are very ordinary, affectionate, and yet extremely resilient. _Jeong Bo-ra (novelist)

I want to go wherever Kim Cho-yeop leads.
We complete the map together, following the quiet and tumultuous sentences left to us by the magician of observation. _Dahye Lee (Writer, Cine21 Reporter)

It's only natural to seek out Kim Cho-yeop's novels to understand how Koreans of this era understood life and the world. —Bae Myung-hoon (novelist)

I encourage your longing, your progress, your change.
The process of breaking and being destroyed is also change.
I support your entire life._Kim Bo-young (novelist)

Novelist Kim Cho-yeop, who expanded the realm of science fiction in Korean literature by setting a record for the longest-running bestseller with her first collection of short stories, “If We Can’t Travel at the Speed ​​of Light,” which received rave reviews from both the public and critics, has published a new collection of short stories, “The Double-Sided Shell,” after four years.
Over the past eight years since his debut, the author has focused on social alienation and exclusion by telling stories of transhumans, non-humans, and others who deviate from normal norms, and has displayed a powerful imagination that goes beyond personal overcoming to move toward social overthrow.
He has also constantly conducted novelistic experiments, depicting worlds and beings that ordinary people cannot experience, such as extreme disasters, unreachable times and spaces, the sensation of alien existence, imperfect communication, and deformed bodies.
The skill of disarming the reader through small miracles that occur in an unfamiliar world, the tender friendships of everyday life, and the love that does not fade even over time is also excellent.
By following the trajectory of Kim Cho-yeop's novels, we are learning about his literary individuality and achievements that he will continue to achieve today.

The seven short stories in this collection are a collection of multifaceted questions and explorations into the nature of humanity.
While connecting with the questions for a better world and the exploration of diverse selves and languages ​​raised by Kim Cho-yeop's novels, it focuses on the issues of humanity and existence.
In a recommendation by the novelist, Information, the author also noted that the characters in the novel “face their own mortality and find the meaning of existence in whatever mode of existence they find themselves, even if they live in a simulation, or are born as androids and equipped with artificial hardware.”

Kim Cho-yeop invites all of us readers to the heart of this question, wary of jumping to easy conclusions or engaging in abstract thought experiments, and invites us to join him on this journey aboard a hot air balloon built on a realistic sensibility and simple faith.
In it, readers can experience Kim Cho-yeop's new leap forward through contradictory emotions of sadness and happiness, loneliness and fulfillment.


Beyond narrow-mindedness and misunderstanding, beyond the edge of the world
A gap of possibility towards a small light


I still sometimes fantasize about becoming a cotton human.
When my heart is heavy, I cry a lot and become like wet cotton, and on a good day, I become like fluffy cotton dried in the sun.
When I'm angry, I can beat myself up.
For a cotton human, self-harm or self-destruction would be a little less dangerous and more pleasant.
A damp heart will dry over time.
So that I can live refreshingly again.
(Subdani's Summer Vacation)

The world of deep blue water overwhelms us.
In the vast space, only we face the sea.
I was afraid to face this immense loneliness.
But Lemon knew this all along.
This lonely world, and therefore how free it is.
(〈Double-Sided Shell〉)

“Summer Vacation in Subdani” and “Double-Sided Shell,” placed in the first half, question what we define as “normal,” the familiar desires that we take for granted and impose on everyone.
Do we need any special reason for our desire to become non-human, our feelings of dissonance with our biological sex, or our desire to form non-exclusive romantic relationships?
As we follow Kim Cho-yeop's novels, we naturally encounter these questions. Rather than simply receiving the author's message, the reader is provided with a space to directly empathize with, empathize with, and vibrate within the various positions.
The story comes to life as it moves through a range of emotions, including love, jealousy, possession, and hatred, and each character shines with their own three-dimensional colors.

A constant effort to understand myself and the world
A cutting-edge novel laboratory that breaks frames and overturns concepts.

“Even when I recorded the sound of the glacier as it was, the sound contained my intention and perspective as the listener.
If we think about it that way, the concept of the soul of things would be a trace of the human 'perspective' that could not be completely separated from the sound of purpose.” (〈Silence and Noise〉)

“Now, I can’t help but be aware that this world, you and I, are a simulation made up of qubits.
My senses have been wandering lately.
(…) red doesn’t seem red, and sweet doesn’t seem sweet.
“When I’m nervous, I feel strangely like I’m sweating or my heart is beating fast.” (Sweet and Lukewarm Sorrow)

I imagine countless worlds, but why am I so fascinated by them? They aren't utopias, nor are they more beautiful or romantic than this one, nor are they particularly kind to the weak. They harbor the same pain, oppression, and misery as this one.
For the people who live there, that world must also be a cage they want to escape from.
Is it okay if it's not just here now? (Following the Clouds)

In this collection of short stories, “Silence and Noise,” “Sweet and Lukewarm Sorrow,” and “Following the Rain Clouds” can be called a series of “explorations” that contain traces of the ceaseless effort to understand human existence and the universe that underlies it.
These works, which break free from the flatness and convenience of how we understand the everyday world, overturn existing notions and shatter rigid frameworks, are filled with the energy of persistently questioning reasons, establishing logic, observing, and proving.
Readers will also find themselves following the footsteps of those who, while persistently exploring questions that cannot be easily answered, such as 'the face of God that exists in a way that we do not want to believe', 'the possibility of existence in a world where life cannot be proven', and 'the leap of a person who is lost in the universe I belong to', little by little, approach the truth.

These novels, told through unreality, through disjointed voices, through bodies that exist and are sensed in inexplicable ways, take a decidedly unfamiliar turn.
This realistically demonstrates how the experience of unfamiliarity can bring about change.
With the illusion that maybe I could understand, that I might reach it someday.
- From Shim Wan-seon, “Knowing It Is Impossible, But Because I Know It - On Kim Cho-yeop”

Kim Cho-yeop takes us into the most unfamiliar worlds, encounters beings we never imagined, and awakens senses we never knew existed.
And yet, as I quietly gaze upon the long-awaited love and the small trust that has not been betrayed, it creates a huge ripple in a corner of my fragile heart.
We are ready to open our eyes to an unknown world.
This is why I've been waiting for Kim Cho-yeop's new work.
GOODS SPECIFICS
- Date of issue: August 27, 2025
- Page count, weight, size: 384 pages | 470g | 134*200*24mm
- ISBN13: 9791168343108
- ISBN10: 1168343100

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