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Chapter 1 - World of Sin App

On a day when celebrity drama usually dominates the trending charts, a strange new topic has taken over every major social platform for hours—and its popularity keeps climbing.

#WorldOfSinAPP

Millions of users are actively discussing it, yet no one knows what this mysterious app—suddenly appearing on their phones—is for. Worse, it can't be deleted.

As the internet buzzes with speculation, far away on a desolate beach in China…

A young girl in a deep blue formal dress stands alone on the shore. Her long, slender legs shimmer under the sunlight, framed by crisp white shorts. She looks no older than fifteen or sixteen, yet her noble bearing is unmistakable.

The sea breeze gently lifts her snowy white hair, revealing a delicate, porcelain face. Her eyes—shaped like droplets of water—are filled with confusion, fear, and a hint of helplessness.

"Where… am I?"

"Neuvillette, where are you?"

Furina's voice, light and trembling, floats into the air—only to be drowned out by the crashing waves.

Just moments ago, she was humming a tune in her room at the Palais Mermonia, savoring cake to celebrate another successful trial. Now, she's been thrust into an unfamiliar world. To say she isn't scared would be a lie.

"Neuvillette… please come out."

Her first instinct is to call for the Chief Judge. The cold sea breeze makes her shiver. She clutches her coat tighter and adjusts the deep blue hat atop her head. Her hair sways with the wind, making her look like a lost child searching for her father.

Her misty eyes scan the horizon, but Neuvillette is nowhere to be seen.

She takes a step forward, ready to search—when a chilling voice, like something from the depths of the Abyss, echoes in her mind.

Her legs give out, and she collapses onto the sand. Her waterdrop-shaped pupils tremble violently, her expression frozen in terror.

The voice continues, icy and merciless, gnawing at her fragile nerves:

[The World of Sin is about to begin.]

[Five nations have been randomly selected. Their Chosen Ones are:]

Japan — Moriyama Yano

South Korea — Shiguang

India — Nima Yale

United States — John Lowski

China — Furina

[The Chosen Ones will enter the World of Sin in 10 minutes. Prepare yourselves.]

"China? I've never even heard of that place…"

Furina's fear flickers into confusion.

"Don't tell me…"

She rises to her feet, staring at the vast, unfamiliar ocean. A dreadful thought creeps into her heart.

"Am I… no longer in Teyvat? Not in Fontaine?"

"That's impossible…"

Her pupils quake. It feels like she's falling into a bottomless abyss.

Meanwhile, across China, the mysterious app forcibly opens on everyone's phones. Blood-red text floods the screen, sending chills down users' spines.

The livestream hasn't even started, but Furina's channel is already buzzing:

— "So this is a livestream app?"

— "Hey, our country's on the list!"

— "Furina? That's a rare name."

— "Rare? I think it's beautiful."

— "So what exactly are we watching?"

— "No clue. Guess we'll find out in 10 minutes."

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