A promising pianist in a slump has a chance meeting with a young woman playing mysterious music, and the encounter forces him to make a once-in-a-lifetime choice.
Yumi is a 30-year old, ordinary woman who struggles with expressing her feelings. Told from the perspective of the many brain cells in her head, she experiences growth in both her love life, her career, and finds happiness in the small joys of everyday life.
Shin Ye-eun (신예은) is a South Korean actress, best known for her role in the web series A-Teen and its sequel A-Teen 2. She also starred in the television series He Is Psychometric, Welcome, and More Than Friends.