I really enjoyed the huge shift in the atmosphere of the episode when Riannon declared Arawn to be her husband. Her sister-complex whipped brother deflated completely. The episode went from heavy dramatics to light-hearted adventure in a split second, and didn't need to rely on overused gags like superdeformed characters, simplified reaction shots, or chibi-characters. I was actually very impressed that they managed to accomplish that all with normalized facial expressions and Arthur's posture (his shoulders just drooped).

Arawn showed off his sword fighting abilities well, by effortlessly dodging Arthur's assault, and later one-shotting skeletons while holding Riannon's hand.

Then Master Asia showed up and I knew I'd be watching the next episode. I just hope that as Arawn's harem builds, he actually does something with them instead of being more shy than an 8 year old even with the primary heroine. (Well Hakuoro did stroke Eruru's tail...once). If Riannon is there just to be there, I'm going to be disappointed again.