If you can make it passed the first 5 episodes, it finally becomes a pretty watchable show. I don't know what else to say except that I'm glad I didn't give up on it. It was hard to keep going in the beginning. Korea seems to kind of glamorize suicide which I wish they wouldn't. It's a problem. There are much better ways to handle things rather than suicide. Anyway, once I struggled past the first 5 episodes, I found that it was worth watching the rest to the end. Please try.
Review of Naesungjukin Boseu
