*Major editing* You're Sebastian's sister and you've been wondering why for over 200 years what happened to your dear brother since you two where closer than anything but you haven't been able to go and find him since no one wanted to start a contract with you so when a young girl starts a contract with you to be with her and stay by her side to make sure no one hurts her and to help take revenge on them you and her run into dear Sebastian when you are protecting her from a group of men and takes you back to meet ciel what happens when you start getting feelings for ciel or when the girl you swore to protect starts to fall for your brother but her contract gets completed will you take her soul and leave ciel or will you turn her into a demon for your brother and serve her forever so you can stay with ciel also or will old enemies ruin it all before you decide I DO NOT OWN BLACK BUTLER YOU OWN YOU AND I OWN THE CHARACTERS I MADE UP

You and your partner, Ciel started working together about a week ago and things aren't the best with you two. Ciel always looks down at you because you are a girl assassin. Ciel was the under world famous assassin and everyone always wanted to be his partner. You were new to the new job and Ciel has to teach you the simple things of being a assassin. Your heart starts skipping a beat when you start finding out his true self....