Gong Woo-Jin is a 30-year-old single man and he 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 was 17, she fell into a coma. 13 years later, she wakes up from her coma. Her mental age is still that of a 17-year-old, but she is now 30-years-old. Gong Woo-Jin and Woo Seo-Ri get involved with each other and fall in love.
as Gong Woo-Jin
as Woo Seo-Ri
as Yoo Chan
as Jennifer
as Kim Tae-Rin
as Kang Hee-Soo
as Kim Hyeong-Tae
as Woo Seo-Ri (young)
as Gong Woo-Jin (young)
as Jin-hyun
as Han Duk-soo
as Dong Hae-Beom
as Gong Yong Hwan [Gong Woo Jin's father]
as Kim Tae-rin's Mother
