You weren't asking to be a servant for a vampire in the middle of the woods. Yet here you are, doing menial tasks for the very same vampire.

While you didn't ask for it, you still owe him a favor, which is saving your life. If only you were to be more careful years before this happened, maybe you wouldn't have met the vampire at all.

After all, you were injured and in desperate need of help when you first met him, Tsukishima Kei, in the middle of the woods, in the middle of the night.

He could've left you to die, but oddly enough, he didn't. He took you to his mansion, and treated your wounds, saving your life.

But in return, he assigned you to be his servant and take care of his mansion and tasks that he'd give daily.

What a savior.