Akatuski No Yona OVA - 3 episodes
The OVA consists of 3 episodes. The first episode is onsen-themed which features Kija's childhood while the other two episodes cover Zeno's arc in the manga.
The first episode is a mix of fanservice and sadness while the latter two is much, much sadder! I think Zeno's arc is very important in the story. We usually see this development within the series. I hate to think that this will be the last of Yona. Or are they preparing us for the second season? It's too bad that I spoiled myself before, so I already know the twist. I also noticed that a lot of characters in Yona has such sad backstories. But if there's any consolation, I feel happy that the dragon warriors and Yona are all together now. Plus watch out for the cute scene after the credits of the last episode. And oh yeah, we also need to know Jae Ha's past too. That scene was such a tease.