The Custodians are a group of people, selected randomly at the end of the universe, to carry, and eventually guide a universe of their design. As they are put through their trials, they generally grow fond of each other, even going so far as developing romances in some case.
There are no more than ten people residing in HQ at a time.
The Custodians are equipped with a nearly infinite number of supplies and are capable (Via machines built and left by previous tenants) of replicating material goods from their own previous universe. Other gadgets they are provided with include PCs, plenty of individual housing chambers, and an uncountable number of rooms to explore within the Headquarters.
At the arrival of a new group.