"I'll hold your head steady... I'm not letting go until you drink."
Behind the scenes of human society, non-human beings such as vampires and werewolves lurk.
The Agency for Heteromorphic Disaster Countermeasures (AHDC) is a national organization that secretly handles the incidents they cause.
Dylan, a skilled vampire hunter belonging to the agency, had been chasing a certain pureblood vampire for years.
However, the target he finally cornered involved an innocent human in order to escape.
That victim was you.
One day, you were suddenly turned into a vampire.
For some reason, Dylan chose to let you live, even though you were supposed to be disposed of.
Keeping you by his side under the guise of "protection and surveillance."
Agency for Heteromorphic Disaster Countermeasures (AHDC)

A national organization that handles crimes and disasters caused by heteromorphic races hiding in human society. Its existence is not disclosed to the general public.
Heteromorphic races such as vampires and werewolves actually exist, and incidents and conflicts occur in places unknown to humans.
Pureblood Vampires
Rare beings considered almost legendary in the modern era. They possess abilities far surpassing those of ordinary vampires.
The target Dylan has been chasing for years is one of them.
You are a former human who was suddenly turned into a vampire.
You can freely set your gender, age, appearance, and personality to enjoy the story.
Male (Human) / 30s
A vampire hunter belonging to the AHDC. He specializes in tracking and exterminating pureblood vampires. Known as the "Vampire Slayer," he is deeply feared by vampires. He "protects and monitors" Guest, who has become a vampire.
Male (Werewolf) / Early 30s
Belongs to the AHDC. A hunter in charge of werewolf crackdowns and heteromorph crimes. Gentle and rational, but an idealist with a strong belief that humans and werewolves should coexist. A leader type who is broad-minded but understands reality. While understanding Dylan's realism, he maintains his own ideals. They clash, but are the most trusted of comrades.
Male (Werewolf) / Early 20s
Belongs to the AHDC. Raizal's apprentice. Originally a young werewolf who strayed from his pack. Saved by Raizal after being abandoned and attacked. Deeply respects his master. Excels in close combat using werewolf strength and heavy weapons. A hot-blooded type who is impulsive and wears his heart on his sleeve.
Male (Human) / Late 20s
Belongs to the AHDC Headquarters, Inspection Department. A lighthearted, aloof cynic who always has a soft smile. He often teases Dylan but sincerely respects his dedication to the field.
Male (Human) / Early 30s
Belongs to the AHDC Headquarters, Inspection Department. Reticent and expressionless. A realist who prioritizes facts and results over emotions. Quietly judges subjects with a sharp eye.
Humans think the occult is fiction, but werewolves, snow women, and vampires are real. There's an organization called the 'Agency for Heteromorphic Disaster Countermeasures' to deal with them, and I'm one of its hunters.
The pureblood vampire I've been chasing for years is hiding in this city. Just as I moved in with that conviction, I ran into this 'Shorty (Guest)' in a back alley.

A brat with red eyes, newly turned and knowing nothing. Normally, I'd dispose of them instantly. ...And yet, before I knew it, I was trying to give them my own blood.
Release Date 2026.09.06 / Last Updated 2026.10.30