I watched the show for Kim Soo hyun. The story wasn't my cup of tea based on how I felt while watching the show.
I liked the side stories better than the main character's story. And the major reason was the same old past connection and how the main leads had such a crazy history. I wasn't shocked when they showed the main leads knew each other from childhood and were from the same town. It's bizarre watching the same past connection plot. There history was soo dark and intense it gave a such a gloomy feeling. Them being together just didn't invoke feeling of happiness in me.
Knowing how Kang Tae and sang Tae mother was killed and that to buy female lead's mother just left me uneasy.
The female lead was odd but not in a good way. The character had serious anger issues. She seemed like a villain to me and she always overstepped and forced Kang Tae and his brother. She was childish but not in a likeable way. Of course viewers must have liked her character but to me personally she felt very odd and evilish.

Overall as a romance drama,I didn't feel the butterflies watching their moments. I like the brother's bond. the autistic brother was the main star of the show. As for healing I liked the back stories more . For much of it couldn't relate. Music was good