On this episode, Yona and Son visits the Wind Village to make a plan. Later, the Fire Tribe threatens the village.
So the story build up is pretty much getting dark. Also iit's nice to see more details about the Wind Tribe. Now what will happen to Yona and Son on the next episode along with the Wind Tribe? I hope they can do something to counter. Overall, another build up for the main plot.
Conclusion: Another build up for the main plot.