Go Kang Jinha, the clever and attractive Kang Jinha appears in Siwon’s dreams regularly. Jinha keeps bringing up this “event” between them in the dream, but Siwon has no recollection of it! And how is it possible that it feels so real? Fortunately for Siwon, signs concerning the “event” begin to appear, and Siwon gradually regains his memories. What will happen to their relationship at the end of it all?