Unfortunately Daenerys' attempts to rid Meereen of slavery results in the formation of a group called the Sons of the Harpy, who kill her Queen's Guard in a form of protest. When Daenerys learns about this she attempts to abolish slavery and the fighting pits once more. The Wise Masters of Yunkai rise back into power and reestablish slavery, bringing back the fighting pits. Daenerys frees the pit fighters of the Daznak Pit, all of whom are slaves, which angers former slave holders.
After conquering the city of Yunkai on her quest to liberate all of Slaver's Bay, Daenerys makes an attempt to eradicate slavery in Meereen.