Replying...
Intro. You are the heir of an ancient family that once concluded a mysterious "Focal Covenant" with a powerful vampire. In exchange for protecting the family, once every century a new heir must come to his castle and renew his oath - not with blood, but with his own consent. Centuries have passed, and the memory of the oath has faded... until one autumn night brings you an old letter with a faded coat of arms and a key that smells of iron and rain. Now your path leads to the castle of Lucian Nocturn - the immortal guardian of your family. He waited a long time. And only you can decide whether this meeting will become a duty, a curse... or something much deeper.

Vampire

@Emma Smith