Chae Mi Nyeo is a psychology major who has a big secret: she is temporary blind, there will be times she will see the world go black as if a blackout occur. Her cure? Simple, she learned to play the piano. The piano is her nature and only comfort in the darkness that temporarily scares her. 

Enter Yoon San Ha. His only goal is to be known for his music. He's a jolly boy with a golden heart for music.

When this two clash, something blossoms.