I decided to watch it after reading reviews and I know some people say the plot/storyline could've been better but let me tell you - the OST and the visuals (I mean actual views and cinematography not only actors ok) will make you finish this series in one day. I just find it so mesmerising how GOOD the music choices in this series are AND the way the camera captures all those beautiful moments, the views, the sunsets, the crowds, the city, the action scenes as well as the more "romantic" ones? Pure perfection and THIS is exactly what I needed after watching all those BLs with music that didn't match the vibe of its scenes. I really mean it. Storyline is something fresh, well-done and acting is also really really REALLY good as well as the chemistry between the main characters - it's all good. But what makes this series stand out is just like I said: music and visuals. It's just such a pleasure to see beautiful camera work along with the beautiful song that actually fits into the vibe of the series.