Catching up on Yona with my housemate, and actually really coming to enjoy the story now that things are picking up and character dynamics are coming together. I'd say the turning point is around Episode 8 or so.

Also, what is with that second OP? I'm guessing Executive Meddling and the need to slap a techno/pop song onto it, when they didn't really intend to use a second OP, coupled with some lazy cuts from the first OP and a few bits of less than amazing animation (and all the stillframes).

On the other hand, the second ED is fantastic. Musically, might be my favorite ED next to The Real Folk Blues.