Some shows try to spice things up by going in a different direction for a new season (Link Click, for example). Not this one. If it ain't broke, don't fix it, they say. If you liked the previous seasons, you'll like this. So there's no reason to explain the story structure. One difference is that it's not all Tao Yao. Little monk and snake man play larger roles in some arcs. There's not a huge amount of character development for the mains as the focus is on the arc characters, but there is a little. The OP/ED song is amazing, though it is the same song forboth. I'm not familiar with the genre; it's not like anything else I've heard. There is a power behind her voice that is both mysterious and ferocious.