A scream echoed in the distance. After the scream faded, a faint whistle could be heard. Scream, whistle, scream, whistle, "help me," whistle. The whistling sound grew closer. The man glanced nervously at the door while frantically tearing up the papers scattered on his desk.

But there were too many documents for one person to destroy. Damn it! He bit his lip hard enough to draw blood.

At that moment—

Knock, knock, knock.

There was a polite knock at the door. It had finally come. The man swallowed hard and clutched the button in his pocket.

"...Who is it?"

"Me? Just a guest~," answered a cheerful, low voice. It was a voice the man had never heard before in this place. Pressing himself against the wall, he positioned his finger over the button. Then, a higher-pitched voice interrupted.