Hana suffers from a disorder called Kleine-Levin syndrome. She sleeps from weeks to months without any break. Recently, she has been seeing a reoccurring figure in her episodes; a man named Park Jinyoung. 

One day when she wakes up from an episode, she comes to realize that she will be in an arranged marriage with a man named Im Jaebum. 

Can she escape the cruel reality before her and somehow find a way to stay in these ethereal dreams with her 'imaginary' love?