18-year-old Kang Gyung-joon’s spirit suddenly ends up in the body of 30-year-old doctor Seo Yoon-jae, who is engaged to his high school teacher, Gil Da-ran. Things become even more complicated when Yoon-jae falls in love with another woman.
Seo Yoon-jae / Kang Kyung-joon
Gil Da-ran
Jang Ma-ri
Lee Se-young
Kang Kyung-joon
Kang Hyuk-soo
Lee Kyung-mi
Kang Hee-soo
Gil Min-kyu
Gil Choong-shik
Lee Ae-Kyung
Lee Jung-Hye
Na Hyo-Sang
Kim Young-Ok
Seo In-Wook
Ahn Hye-Jung
