I found the beginning to be quite poor, it took a handful of episodes before the drama started going. By then, most viewers would have dropped it already. A good initial hook is necessary, especially for a longer drama. The storytelling was as shallow as a kiddie pool. It felt like they were trying to cram an unedited history book into it. The drama really needed to be shorter with a better structure because the potential was already there. The characters were as two-dimensional as stick figures, most of them were unable to convey the necessary emotions to the viewer. It would've been awesome to bring Japanese cast to play the Japanese. One thing the was missing was its own signature OST to match the atmosphere.