The marriage of Paul and slave Sherry brings dramatic changes to the Stevenson household, leaving Molly to navigate her new, diminished role.

Other slaves seize the chance to move up in the hierarchy, while Maggie, now the “favorite,” takes full advantage of her new status in the harem.

With Paul and Sherry away, Peter leaves Maggie in charge, making her the acting slave-matron responsible for managing the other slaves.

The end of the school year approaches, and the graduation preparations are in full swing, with the poor women of the school bearing the brunt of their masters' cruelty.

Teachers and students alike find fresh ways to torment the slavegirls, exploiting every opportunity to indulge their dark desires.

In Birthday Gift 9, the balance of power shifts dramatically in the Stevenson's harem, leaving the women vulnerable to new and crueler forms of punishment.