I like happy dramas and this is one of them. This gave me a surprise ... pleasantly surprise. This drama is on a sweet, fluffy, romantic side. FL is bright and optimistic, sweet, bubbly, kind, forgiving, hard working and ML is a genius with cold personality and has a peculiar kind of illness which gives him great memory. They fall in love and support each other through their Journey. It's a cliche with many sweet moments. Their chemistry is off the charts and other two couple are also good. Sound lead couple too has good chemistry FL is sassy and ML is cute and sweet. I recommend watching this when you just want to feel good and take a break from heavy stuff, well sometimes it can feel overly sweet as well. :)