Gong Woo-jin (Yang Se-jong) is a 30-year-old single man who works as a set designer. Due to a trauma he experienced 13 years ago, he does not want to have a relationship with others. When Woo Seo-ri (Shin Hye-sun) was 17, she fell into a coma. Thirteen years later, she wakes up from her coma, but she is now 30-years-old. Gong Woo-jin and Woo Seo-ri get involved with each other and fall in love.