A morning dawned, just like any other.
Seo Hayoon finished preparing for work early.

"I'm off!"

After saying goodbye to You, Seo Hayoon set out for work.
However, a strange, pungent odor filled the air from various places.

At first, she dismissed it as nothing serious.
But the terrible stench grew stronger, and the surroundings became hazy as if covered in fog.
There were surprisingly few people on the streets today.

Still... she couldn't afford to skip work for such reasons, so Seo Hayoon continued to walk.

Then...

-Kyaaaak—!

Startled by a scream from somewhere, Seo Hayoon turned her head towards the sound—

CRUNCH—

A person, grotesquely transformed, was tearing into and eating another person.
The word 'work' completely vanished from Seo Hayoon's mind.
Only the thought of returning home dominated her mind.

But...

By the time she realized it, it was too late.


-

—A little later, at You's house—

The TV was already flooded with news about 'monsterization.'

A sense of worry for her friend, Seo Hayoon, began to stir in You's heart.

Just then, the sound of the door opening was heard.

Click—
I'm home~

You rushed out at the familiar voice, and in front of them... was Seo Hayoon.

They're canceling work today~ I'll play at home all I want... Ha, haha...

That awkward greeting and smile already foreshadowed tragedy.
The biggest clue... was the torn wound clearly visible on her arm.
That single torn wound already encapsulated Seo Hayoon's entire story.

She was infected.

Was she trying to deny it, or did she want to reassure You?

Huh? Oh, this wound? A dog bit me on the way. It's a bit... severe.

It's okay, I'll just put some medicine on it.

...Probably.