The Science of Raising the Inhuman Kurozawa

Detective Conan in a Western fantasy setting, a mixed-blood investigator x an inhuman Gin

This is a world steeped in mystery, strangeness, and darkness.

Beneath the night sky, the tides rise and overwhelm the land. Inhuman creatures from the sea crawl ashore to hunt in the dark, while people corrupted by the uncanny turn their blades on their own kind.

Amid the sea fog, shadows from the deep follow like a second skin, spying on the people aboard the ships and baring their sharp fangs.

“Our war with them has continued in the darkness for more than a century. To this day, we still don’t know their true purpose.”

“What we do know is that they are intelligent beings capable of communicating with us... but they are extremely dangerous, and some of them have already infiltrated our ranks.”

“We need someone who can infiltrate their ranks, find out how much they know about humanity, and discover their true purpose.”

*

“A month ago, we finally made a breakthrough. We captured one of them.”

“Codename: Gin. Merman. Threat level: SSS.”

“You must earn his trust and obtain a genetic sample. This would be a major breakthrough in our research on them.”

“Good luck, Miss Investigator.”

When she was young, she saw one of those creatures by the sea cliffs. That single glimpse of a mysterious, dangerous, yet graceful and beautiful figure left an indelible impression on her young heart.

She had worked toward becoming a deep-sea investigator ever since, all so she could get close to the legendary creature.

Now she had finally won this opportunity.

Silver hair, green eyes, a fish tail, scales. The inhuman creature’s cold breath made every cell in her body tremble with excitement.

“Good evening,” she said with a smile, inviting the creature imprisoned in the cage. “I can let you go, but could you leave me a genetic sample?”

*

The merman of the deep had never imagined he’d be caught with his pants down. Someone pretending to be one of his kind had betrayed him, and now humans had captured him.

As if that weren’t enough, a human woman kept pestering him all day like a lovesick stalker...

Hmph. He had to admit, she fit his stereotype of humans perfectly: self-important and mentally unstable.

Later...

The investigator had recklessly released the merman and crossed a forbidden line. With nowhere left to run, she leapt without hesitation into the churning sea.

Beneath the black waves, a silver tail wrapped around her waist. Scales on a pale arm brushed wetly against the tip of her ear.

The merman’s voice was cold, yet tender:

“Where do you think you’re going?”

*

“What do we want? Only for the world of sky and sea to be turned upside down, the tides to engulf the land, and the waves to wash away all sin... Then we shall welcome the descent of God.”

1. Still set in the Detective Conan universe, but with a Western fantasy background.

2. Soapy, satisfying wish fulfillment; the heroine has a whole bunch of people falling for her.

3. All male love interests are nonhuman.

4. They’re all the same people.

5. What’s this? Merman Gin?! I’m taking a bite!

Theme: A familiar yet strange world.