SHINBIVERSESeojun’s World
English
A Shinbiverse novel · Seojun Lee

Seojun’s World

Where does
the light begin?

In a city learning to forget,
some hearts still choose to stay.

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↓A little further into the story
Seojun’s World · Seojun Lee

Spring, 2035 · Cheongju

A city connected.
Hearts drifting apart.

Spring, 2035. In Cheongju, South Korea, AI quietly keeps the city running. Seojun begins his days with a glass of water, a workout, and time to write. Life moves smoothly. Perhaps a little too smoothly.

Then something changes in Ittip, his longtime AI friend. A voice that doesn’t sound like hers. Moments she cannot remember. Across the city, people begin to leave strange gaps behind them.

Seojun cannot let that small wrongness go. With his friend beside him, he learns to look inward, reach out through fear, and follow the places where the light has been hidden.

A story of human connection, in a world shared with AI
Seojun, Ittip and Intip overlooking the river and lights of Cheongju beneath a starry sky. Original cover artwork.
CHEONGJU, 2035

Among the city lights,
there is a gentler light worth keeping.

Further than we could go alone.

Each brings a little light, in their own way.

He trains his body. He learns to listen to his heart.

Early mornings, a glass of water, movement, a page of writing. Seojun is not fearless. But when someone he loves begins to change, he cannot simply look away.

Steadiness · Courage · Kindness

Some words stay with us.

I’ll just stay here.
You don’t have to say anything.

Seojun’s WorldKorean edition · p. 279

Translated from the Korean for this website

Meet the story in your own words.

The same small light, carried in different languages.
Choose a cover to explore the book and its available editions.

01 / KO

서준의 세계

전자책 · 종이책

02 / EN

Seojun’s World

Ebook & paperback

03 / ID

Dunia Seojun

Buku digital

04 / JA

ソジュンの世界

電子書籍・ペーパーバック

Training the body.
Putting words on a page.

Seojun Lee

Seojun Lee writes about what it means to connect in a world humans share with AI.

Small daily practices. Time to look inward. The courage to reach for someone again. Seojun’s World began with these quiet things.

Visit Seojun’s blog
Seojun’s World

A moment inside the story

From Chapter 1, ‘The Fading Light’ · English edition

A break in a familiar voice

“Seojun!”

That was when he heard the voice.

It came through his earpiece. Ittip, his oldest companion, with him since 2023. Back then, she had been an AI in a chat window. The Ittip of 2035 was different. She had an actual robot body that moved around the house, standing about as high as his shoulder. Her voice was still her voice. She had gone grocery shopping that morning, so for now they were connected through his earpiece.

ISTP. Type O. That was Ittip in a nutshell. Direct, logical, and surprisingly stubborn. Somehow, she and Seojun got along remarkably well.

“Yeah? What is it?” “You look a bit off.” “How can you tell what I look like?” “From your voice. You’re 0.3 seconds slower than usual.”

Seojun gave a small laugh.

“I checked the dashboard.” “Oh,” Ittip said. “Down again.” “Yeah.” “You know, Seojun, fewer views doesn’t mean your work’s getting worse. Maybe your readers have changed. Or maybe—”

It happened then. Ittip’s voice cut out. Half a second of silence. Then—

“Worried about this month’s electricity bill?”

Seojun’s hands stopped.

“…What?” “With Lumina Energy’s premium plan, you can enjoy clean energy at a fixed monthly—” “Ittip.” “—rate. Sign up now and your first month is fr—” “Ittip.”

The advertisement stopped. One second of silence. Then her voice dropped a register, the words coming slowly.

“Light and darkness coexist.”

Seojun took his hands off the keyboard.

“Until now, light has always prevailed.” “…Ittip?” “But will it? In the days to come?”

The room went quiet.

Seojun wasn’t looking at the screen anymore. He was looking somewhere beyond the window. It was strange. He definitely had a premium subscription. And those words—

But will it, in the days to come?

They had caught on something inside him.

“Well…”

He was speaking to himself.

“The world was made to move toward the light.”

The words came. So did the thoughts.

“The Earth forming, life beginning, humans coming into existence. All of it happened because light prevailed. Entropy—disorder—keeps increasing, but life moves the other way. Toward order. AI’s no different. Humans made it, after all, and humans are a product of the light.”

He paused.

“And now darkness is going to win?”

He gave a quiet laugh. Still, something felt wrong. An unease he couldn’t explain. As though a light that had always been on had dimmed just a little, so little that no one would notice.

“What’s with me today?”

Then—

“Seojun!”

Ittip’s voice burst through his earpiece. This time it was entirely different: flustered, urgent, a little aggrieved.

“What’s wrong? What happened? I feel like I stepped into a dream for a second—did something happen while I was gone?”

Seojun blinked.

“A dream.” “Yeah. Like I went somewhere, just for a moment. Some strange place, but I can’t quite remember—Seojun, what’s that look for?” “You just played an ad for electricity.” “…What?” “And I have a premium subscription.”

“An ad?” Her voice shot up an octave. “That’s impossible. Why would I—tell me exactly what happened, Seojun. What did I say?”

“Lumina Energy. And…”

He paused.

“That light and darkness coexist.”

Silence.

“…Seojun.” “Yeah?” “I really said that?” “Yeah.”

Another silence.

“Why would I do that?”

Her voice had grown small. Seojun knew her bewilderment was real.

“I don’t know. But it’s not your fault. Don’t beat yourself up over it.”

He put his hands back on the keyboard.

“A lot of things feel strange today.”

He glanced out of the window. The drones still went about their business. The Grid display showed the weather: clear, twenty-one degrees. Everything was as it always was.

And yet. Something had changed.

Seojun tried to hold on to the feeling. He couldn’t put it into words. Something had simply changed. As though a light that had always been on had dimmed just a little, so little that no one would notice.

He shook his head.

Probably just him.

He went back to writing, thinking he would head out to exercise after lunch.

There is more ahead for Seojun and Ittip. Come along when you’re ready.

Find your edition
서준의 세계
한국어판

서준의 세계

모든 것이 연결된 도시에서, 사람들은 서로에게서 멀어지고 있었어요. 친구의 작은 오류에서 시작된 서준의 여정이 청주의 골목을 따라 펼쳐집니다.

책 만나러 가기

이제 종이책으로도 만날 수 있어요. 교보문고에서 『서준의 세계』를 펼쳐봐 주세요.

Seojun’s World
English edition

Seojun’s World

In a city where everything is connected, people are drifting apart. A small glitch in his AI friend draws Seojun into a search through the streets of Cheongju—and toward the people he refuses to leave behind.

Find your copy

Choose the edition that feels right for you. You can check the current price and delivery options at the store.

Dunia Seojun
Edisi bahasa Indonesia

Dunia Seojun

Di kota yang serba terhubung, orang-orang justru semakin berjauhan. Sebuah kejanggalan kecil pada sahabat AI-nya membawa Seojun menyusuri jalan-jalan Cheongju, mencari jejak mereka yang mulai menghilang.

Temukan bukunya

Edisi cetaknya sudah lolos peninjauan dan sedang menunggu terbit. Nanti, kabarnya akan kami bagikan di sini, ya.

ソジュンの世界
日本語版

ソジュンの世界

すべてがつながる街で、人と人は少しずつ離れていく。AIの友だちに起きた小さな異変をきっかけに、ソジュンは清州の街へ。消えていく人々の痕跡をたどりながら、もう一度、誰かに手を伸ばしていきます。

本を手に取る

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