My Younger Brother Is Not Allowed, Your Grace

For the next 500 years, the heirs of the Sutton family cannot disobey the “orders” of the Sloan family.
Because of a ridiculous ancestral contract, Daphne’s family must serve as attendants to the Duke of Sloan for 500 years.After a long, long time, on the day the oath is finally supposed to end, Daphne’s younger brother, who is an attendant, meets a horrifying fate.Then, when she opens her eyes again, she has returned to five years in the past.To save her younger brother, Daphne decides to take his place and become the attendant of the Duke of Sloan.“On my father’s honor, I swear I will do anything you command, Your Grace!”“Good. That’s how my cute little sycophant should be.”Then, one day, the shocking truth behind her younger brother’s death is revealed.‘It was… you who killed my brother.’