Jung Yonghwa is a psychiatrist whom recently been accepted at Gangnam's famous Psychiatric Hospital. As one of his first duties, he was in charge of a patient named, Seo Joohyun, a 18 year old.  Joohyun, who was a mute, could only communicate through the uses of a notepad and a pen.  However, that didn't falter Yonghwa's goal to help her.

Unfortunately, after years and years of giving her treatment, nothing seemed to be working. No one would admit it, but every single one of the doctors seemed to have given up on her.

All but Yonghwa, of course.

Many of his sunbae psychiatrists wondered where he got his fire to keep trying.

Maybe it was love.