Good series with a great cast. Though it wasn't fleshed out, the sci-fi element of the story was interesting and was a reasonable catalyst to drive the story forward.

There were a couple of nice twists, like the SFL being completely psycho and the ML being the mysterious guy in the future trying to change the past via the mystery phone. The power struggle within the business could've been better. I still don't understand what the SFL's father hoped to accomplish by getting the phone that could call the future. How was that going to save his health and subsequently his life? It would've made more sense if he wanted the phone for the financial gain he could generate from the technology, rather than his personal health.

The ML could be a selfish ass, but eventually grew and learned the only way he could save the future -the one he loved was to let go of his own personal desires. The love story was sweet. The leads had nice chemistry and their interactions felt organic. How their story played out in the final episodes was predictable. Yet it was entertaining. This wasn’t outstanding . There were some plot points that made no sense, but it wasn’t bad either. 16 episodes was the perfect number of episodes to tell the story. I wish more C-dramas would do more with less, similar to this drama. Enjoyable series.