Grinding doesn't even get me down so much as this one just sort of seems like the author is stalling for time as they figure out what they're doing. I mean the big revelation is that he's a wizard...and he's been doing mana manipulation, healing, learning magic, and learning summoning for a while now, so why he hasn't figured out he's a wizard yet is beyond me.

Also for having a high int he seems kind of blind to some basic combinations which is weird(the mana drain skill and bind is a perfect combination that he hasn't tried to do yet(Has he even used the skill book?). Same with just about any sort of elemental magic and any of his mana skills). Just seems to be missing so many obvious things and is just doing the same old same old. I wouldn't mind the grinding so much if there was at least some growth to his understanding of what he was doing(back when he back up with mana shield and bind was still interesting even if it was just straight grinding).