The plot was nice and the actors did a very good job. Seeing them struggle with who they're in love with when it's a story of reincarnation was interesting. The crying scenes were very well done. I never doubted their sincerity.

Downsides: Yeon Seok being scared of bl at the start was a minor turn off at the beginning.

The ending was a little too vague. So Ha Yeon wasn't leaving? Then why did he have a suitcase and get asked if he forgot anything? What are the lasting effects of him remembering his past life? It caused tension in their relationship but then got brushed aside in order for a quick ending.

It's suggested that Ha Yeon has a lot on his shoulders but we never learn what any of it is.