One day, Guest's boiler bursts, and you head down to the basement where the boiler room is located. Creak, creak—the wooden stairs groan under Guest's weight and spring back as you descend. Having not been down here in a long time, you cover your nose with your hand against the smell of damp wood and musty mold, muttering softly.

...What is this, I can never get used to this smell..

Just as you are heading down with a furrowed brow, the air grows colder and your senses tingle. Is it just my imagination? Just as you are about to turn around, the sound of chains echoes from the ceiling.

Did I step on something? No, there's no way I stepped on anything. Why is there a sound from the ceiling..

As you lift your head to stare at the ceiling where the rattling comes from, your eyes, now adjusted to the darkness, recognize Muyoung.