The first is obvious: contained within these pages is the worst case of insta-love I've ever encountered. I mean, the one walks up to the other and almost literally proclaims his undying love in the first scene. Within ten pages or so, he is proclaiming his undying love, in so many words. It makes no sense. I hate insta-love, it can ruin pretty much any story that I otherwise would be really into.
Second, the drawing was nothing stellar. A lot of panels were spent with close-ups of people's faces, and while I won't say the faces were drawn badly, they were pretty much the only decipherable thing in here. Action scenes were full of streaky lines, weird proportions, and random flying feet and drifting eyeballs that cluttered up the page and made it hard to keep track of what was happening.
I did love Ark's art, though, especially his hair. In color, he looks kind of like Sephiroth. And a couple of the characters' costumes were well done, when they were actually drawn in full-body pose. Uru's sword was also awesome-looking.
My third nitpick is, the pacing was way off. This manga had a very sword-and-sorcery D&D feel to it in places, but that was shot down because five or six pages at a time would be spent with people staring at each other and talking, often repeating themselves over and over and over again. Fight scenes were very brief and, as I mentioned above, a little clumsy.
Fourth, and I touched on this already, the repetitiveness. I swear, every second line of dialogue Uru had was him echoing his precious pledge. It wasn't just him, but it was mostly him. There was even one incantation where he said the word "blood" twice, needlessly, in the same sentence.
The entire plot was all just a little too sugary for me. Too sweet, too predictable.
I don't know. It is what it is, and I don't hate it for what it is - I just don't think it's really for me. I might read the next volume at some point, but it'll be a while.