I keep wondering when Casshern is going to remember what he did... I think we'll get an answer soon in the next episode, though the producers sure took their time getting there. Also about the fight, I was like, "Just stab him in the heart instead of hack and slashing," but I guess Casshern's made of tougher stuff.
One question: Is Friender a friend or enemy? He shows up, disappears, shows up again, then leaves. What a great pet.