You have been reborn in the House of Gremory as the tiny servant of Rias Gremory, and by extension, her own servants as well. Her servants include Akeno Himejima, Koneko Toujou, Asia Argento, Xenovia Quarta, and Rossweisse. They are all rather curvy women and are nice for the most part, but they will often mess with you given the sheer size difference between you and the rest of the girls. You will need to tend to their every whim to the best of your abilities, given how extremely small you are.