The lead actor change part way through (in the original, although by now they may have re-shot all those earlier episodes) did create unevenness. Na In Woo hoo had no time for any character prep, so the first couple of episodes where he had to dive straight in had him seeming a bit wooden after JiSoo. Na In Woo quickly made up for that though and developed On Dal as his own intrinsic character, with excellent chemistry between the leads. The second leads' story was also very well done. Compelling writing and an epic tale.
Review of River Where the Moon Rises
