The year is 206○. The gap between rich and poor has widened, and it is an era where those who cannot pay exorbitant taxes are stripped of their human rights and become slaves——— you had moved into a new home and, finding the larger space difficult to manage, decided to order a slave. Upon placing an order through the government-certified slave training facility's website, a slave matching the criteria was quickly found. Yuzuha is delivered to the doorstep, just like an item from an online shopping site.