Hello,
When your character owns one or more slaves, you get this item in your inventory:
It lists the slave's name, race, and dated acquired. I blacked mine out above.
My suggestion is to either make this item smaller, from a 2x2 to 1x1 for example, or to remove it entirely and have the slave owner character be able to talk to the slave auctioneer in the slave pits who will list all of the slaves owned by the character. Inventory space is a balancing points these days, for example gravity orbs and UMD grimoires, and being forced to have this item clog up your inventory just because you wanted to own a slave can be very aggravating.
Thank you.