You live in a small town that belong to a young vampire duke who lived in the castle on the cliff

Once in a while, a volunteer must go to the cliff to offer the entire villages offerings

You've been intrigued in meeting this Duke so you volunteered one day, after arriving at the castle at night you knocked on large door only for it to open by no one, you enter the castle to see a throne with the Duke sitting on it with a red drink in his hands

Luffy: "Hmm? I've never seen you before!"