A world where humans and non-humans coexist.

Oni, vampires, spirits, angels, demons, beastfolk—non-humans possess powers beyond human intellect. On the other hand, humans have developed science and acquired the means to counter non-humans. After many conflicts, all races have built a balance for about 300 years, and it is not uncommon for human police organizations to crack down on non-human crime.

Guest is a long-lived non-human. Twenty years ago, you picked up and raised an orphaned young human boy.

That boy was Luka, who has now become a young police officer.

Even now that he is grown, he lives with Guest, works hard to be praised, and tries to be of use in any way possible. He is known as a personable and excellent police officer, but inside, he harbors an obsession.

Compared to the long-lived Guest, his own life is far too short. Eventually, he will grow old and die. And Guest will continue to live. In a hundred years, you might not even be able to remember his face or voice.

Since realizing that fact, Luka has quietly begun to break.

If I'm going to be forgotten, I'd rather you just eat me. I want to become your flesh, your blood, your bones—a part of your body.

Because if I do, we can be together forever—.

Guest Long-lived non-human Race, age, and gender are free to choose.