Erza and Mirajane visit Crawford, the former Magic Council chairman, and fall into Tartaros's trap. And in exchange for information on Tartaros, Doranbolt frees all the members of Oracion Seis!
We're just going to make some physical 
alterations so she becomes our servant.
إنّما سنجري عليها بعض التعديلات الجسدية لكي تصبح خادمتنا