Awesome art, story and characters. The fight scenes are brilliant. So far there does not seem to be any plot holes in the Magic system. The tension and suspense is also just enough!
I agree, the pacing of the tension and suspense in the story is absolutely amazing, and it's kind of what it feels like when you're watching sports and your team is winning. The only difference is that your team may not win, while Sung Jin-Woo is basically guaranteed to win.