Ellis and William from "Mark of the Familiar" have found their happy ever after in each other's arms. But that doesn't mean they can't keep life—and love—interesting. As they celebrate First Day together, Ellis learns the origins of the day and of his people. In the spirit of the holiday, William gives Ellis a length of rope to further explore the boundaries of their relationship. In return, Ellis does his best to show he understands exactly what giving and submitting are all about.