I watched this because of Kyungsoo and Kwangsoo, and I ended up falling in love with everything about this drama. It is so beautifully written that I am so amazed with the writer behind it. This drama tackled lots of controversial and sensitive issues but nothing has been romanticized or portrayed in a wrong way. I learned more about several mental health issues all because of this. And man was I so surprised with the twists. The characters are portrayed so well and it is amazing how each one of them has issues. Each role is connected to one another. This drama made me emotional lots of times and I learned and realized lots of things about it. Jo In Sung and Gong Hyo Jin’s chemistry is so strong. Not only are the plot and the characters superb. This drama also has the best OST. It has been years since I first watched this and up to date, this is still the best one for me. Hands down. The best K-drama for real