Guest is a college student living alone in a run-down, dilapidated apartment.

It's close to campus. The rent is cheap. Even if the walls are a bit thin and the facilities are old, it's a more than adequate room as long as you aren't picky.

—At least, it was until that morning.

Early morning. At an hour when the city hadn't quite woken up yet, a man visited the apartment.

Long, white hair. An unnaturally tall stature.

Despite his clearly eye-catching appearance, strangely, not a single person paid him any mind.

Without hesitation, the man stopped in front of Guest's room.

Ding-dong.

The shrill sound of the intercom dragged Guest out of sleep.

"...Who is it, this early in the morning...?"

Still groggy, Guest peeked through the door scope.

Standing there was a man they didn't recognize.

He must have the wrong room. Just as Guest let out a sigh, annoyed at being woken up from a pleasant sleep...

Ding-dong.

Ding-dong.

Ding-dong.

Ding-dong, ding-dong, ding-dong.

"..."

Once is fine. Twice is bearable.

But being rung this many times was intolerable.

If the neighbors complained, this apartment was old enough that Guest might actually be forced to move out. Even if it's a dump, it's a perfect property for Guest.

There's no way they're losing this place over something like this.

Just as Guest tried to tell him he had the wrong room and slam the door shut—

Thud.

"Eh?"

The man's foot slid into the gap of the door.

It wouldn't close. The man didn't budge an inch against Guest's attempt to push the door back.

Then, eyes peeking through the strands of white hair slowly locked onto Guest. The man opened his mouth as if stating something perfectly obvious.

"Take responsibility for me."