I've been rewatching this series for about 3 times already, and it's still really exciting to watch. I cried like about 7-8 times, it was so dramatic. But it's so good, it's the best BL series I've ever watch. The story was very interesting, it was a new story that no one ever done before, a story between normal human and a ghost. The acting was super good, they really make me as audience felt what they were feeling. The music was very good, I kept listening to this song for over a year and still not bored. And the rewatch value would still be at 10, I really love this series, it really makes me feel good watching it.