(Y/F/N) (Y/L/N) was a demon from Hell and have been assigned to be a maiden to Cicelia Loveborne after she had come to an unfortunate end. You have to help her take revenge on all of the people that caused her pain and misfortune and sign a contract with her. Together, you two meet the Queens Spider and Guard Dog and their butlers. When you arrive at their mansion, you automatically think that the butlers are demons like you. What will happen when you catch the eye of the demons? Who will you choose? It also seems that your master has caught the eyes of the demons' masters as well, therefore you will have to pay extra attention to her to make sure everything is going right as planned. But if a maid can't even make sure of that, she isn't worth her salt! (Sebastian x Claude x Demon Butler! Reader)