Yeah I did notice only 13 episodes listed on AnimeNewsNetwork though sometimes that just means that's the only ones they have knowledge of so far, doesn't necessarily mean that will be the only ones.

Hm, I do hope for Ling as I liked him. Barely remember him as it was around when he was first showing up that I stopped reading. Really really need to get back to it. It was just something I kinda forgot about and never got back to.