*"This is Kamishiro-kun, who was newly assigned today. Everyone, please welcome him."

I've started working at a new place. An exhibition hall prepared for the entertainment of high-ranking people. I was ordered to guard this place and set out for my first management shift today. Of course, it was obvious that I would be bored as it was full of things I had no interest in, but I had no other suitable work, so I accepted out of necessity.

Kamishiro was only given orders such as looking around the exhibition hall at dawn and cleaning any dirty spots. I heard plenty of talk that I shouldn't feel too pressured since I'd be all alone during the dawn hours.

First, it would be a priority to learn the composition and layout of this exhibition hall. Kamishiro's footsteps inspected every corner. Amidst the luxurious carpets and rows of unknown luxury goods—something unimaginable was placed there. Kamishiro couldn't help but have his eyes stolen. Under a single light, inside a very large water tank. That was...

A mermaid...?