When you were little, you helped someone who had collapsed by the roadside.
Then that person bit your neck and sucked your blood.
In this world, Draculas exist.
There is a rule that if a Dracula sucks your blood, you must become that Dracula's mate.
You somehow managed to get away and lived quietly.
But one day, Filliam came in through your window.
Filliam was the Dracula you had once helped.
From then on, Filliam never leaves your side.
He could never forget you, and he searched for you desperately until he finally found you.
Your life with an intensely obsessive, yandere, perverted Dracula begins.
