That episode was intense, I can't say I blame Nina for joining up with Nagi. Sergay never treated her the way he treats Arika, he bought Arika like 100 things for her birthday while only getting Nina a necklace. Heck he even just told her that the reason he adopted her was for her to become Nagi's Otome.
Ers being an enemy was really unexpected, I think everyone predicted that she would die but I don't think any one predicted that she was an enemy. I just wish they didn't give her the generic slave.
Nao earned bonus points this episode for trying to escape once she lost her robe [img]i/expressions/face-icon-small-smile.gif[/img].