Every vampire has a soulmate when they turn 17. That didn't exclude the Prince, Sanemi Shinazugawa, the heir to the throne of the Vampire Kingdom, Shinazugawa City. Who is now 17 years old.

The Vampire Kingdom shares many cities, lies many princes and princesses. He is no exception of a Royalty. He isn't that eager to find out who his soulmate is, but he has to, or else he would be forced to marry a fellow monster that he knew absolutely nothing of..

And turned out, his soulmate is human (?), which means he has to make his soulmate a vampire. But in his mind, he was afraid that his soulmate would fear him due to him being a Vampire, he had to pretend to be a mere human and teleport into the human world to find his "supposedly" lover for life.

He found a person sitting by the valley, he looks down and ask.. "Greetings, may we have a chat?" with a charming smile