Just finished watching this drama and, omg, I absolutely loved it. I have no idea why the ratings are so low. I thought the production quality and filming were both really well done. The only minor issue was a couple of scenes with someone’s audio equipment being less than ideal, but certainly not enough to account for it being a lower score. Also, some were saying it’s either an open ending or sad ending, but it’s clearly not. He comes back in the last second of the last episode. It's only his voice with a black screen, you don't see his face, but you know it is telling us that he returned. And it’s also clear in the last visual of her face that she notices him. True, it doesn’t explain how he survived, but whatever, he lives and that’s all I personally care about. Regardless of what others think, I really loved this drama, the actors, and the story. I hope you’ll choose to give it a chance too.