It's clearly my favourite Kdrama for the moment. The plot is really interesting and there's always knew elements which appear. The drama never gets boring or predictable. I couldn't stop watching it because I wanted to know how it will end so bad ! The actors play really well, it's easy to feel the character's emotions. I jas the feeling it jas a good retransmission about what hypermnesia and memory lost are. I highly recommend for the ones who love romance with some secrets between the main characters.