I watched this because of Gong Hyo Jin which I found her in Master's Sun and my interest in psychiatry, and decided to watch this drama. This is one of the most unique, interesting, heartwarming and yet realistic dramas I ever watched. I enjoyed every moment of it. Story: The story plot talks about reality and sensitive topics that most dramas usually avoid. This story is based on psychiatry and gives you a reality of how mental disorders can affect a person's life and people around them. It also is a slice of life drama which focuses on love life, forming relationships and even about sex life. To make things short, this drama focuses on people who try to overcome their mental disorders while trying to understand love and building relationships. Acting/Cast: The characterization was amazing. They made you laugh or cry.Each character had different personalities that formed a love-hate relationship with each other, you could say that they're an interesting group of people who treat each other like family. The main pairing's (Gong Hyo Jin x Jo In Sung) relationship started naturally and wasn't overly exaggerated or expressed. Jo In Sung's character was the most interesting to watch, I really recommend keeping an eye on him throughout this drama. Although I'm not a big fan of idol actors, D.O has chosen a really interesting role for his debut as acting and has done a really good job Music: From soft ballads to songs that have a happy vibe, their OSTs are amazing to the point where I downloaded all of them onto my phone. My personal favorites are The Best Luck - Chen, It's Okay That's Love - Davichi, I Love You - Yoon Mirae, And I Need You the Most - Hey, and Sleepless Night - Crush. It also contained some old classic songs I was satisfied with the ending too, so I really do recommend this drama, I hope this reviewed helped~