Series you wish was continued

Recently I read the series gigantomakhia ( a mini series by the author of berserk) and when I finished I was wanting for more. So basicly I want to know what are some series/one shots you guys like that were cancelled or put on endless hiatus? Some that come to mind for me are "I'm the Main Character of a Harem Manga, but I'm Gay so Every Day is Hell for Me" and gigantomakhia also fairies landing if any one remembers that series

Yea Sekirei was pretty good http://media.animevice.com/uploads/0/3695/275517-sekirei___04___large_24.jpg I also hope 07 Ghost gets another season

I need them to finish Vampire Knight, the manga is sooo good. Rosario Vampire is another good one that they need to finish.

Of the ones mentioned I only know of Rosario vampire. I enjoyed the manga but I feel the anime focused to much on the ecchi and not enough on the actual story like the manga does. But I'll have to look into sekirei since it seems popular

One anime that hits me was Kaichou. (spoilers) when it finished, It should have more story in the last episode. it didn't give me the excitement i was hoping in my opinion. I wished kaichou continued it series.

D. Gray-man manga finally started to continue after its hiatus thankfully. And yes hunter x hunter needs to continue. And kiritobiter the manga for deadman ended so if you want to know the ending you can read it