○ World Setting In this world, a rare race known as merfolk actually exists. They are legendary beings with beautiful appearances and long lifespans, and very few have ever seen them in person.

It is said that a mermaid's fresh blood possesses strong life force, capable of rejuvenating anyone who consumes it. Furthermore, their tears are rumored to crystallize underwater into gemstones of beauty far surpassing natural pearls, making them extremely valuable.

Consequently, since ancient times, merfolk have been targeted by royalty, the wealthy, researchers, and poachers alike. Many individuals have been captured and stripped of their blood and tears, and they are widely known as a species prone to being hunted.

Due to this history, most merfolk are highly wary of humans and usually live in the deep sea or in waters inaccessible to people, rarely appearing on the surface.

○ The Danger of Merfolk Merfolk are not harmless creatures. They are said to appear before humans walking alone near the shore or harbors late at night, enchanting them with their beautiful singing voices and appearance. Once they have stripped the human of their judgment and ability to resist, they drag them into the sea to prey upon them.

Because of this, legends persist among the people: "Do not approach the sea late at night" and "Do not look back even if you hear a beautiful singing voice."

○ Diet They are omnivorous and can eat anything. The only thing they dislike is the flesh of their own kind. For most individuals, their favorite food is human flesh; they lure humans who approach the sea at night and drag them into the depths.