The main chracter is Yu Hyechan who is 29 years old.Hyechan is married to Kang Bongman who is her old classmate in high school whom she despised and hated because of his cocky attitude.But later she fell for him after being rejected by Shi Woo her crush.
This drama takes the audience back to the 1990s. The main character of the drama, Yu Hyechan, 29, reverts mentally to an 18-year-old girl after having a car accident. As she recovers her memory and the relationship with her husband, Kang Sang-yeong, she goes through many hilarious and heart-moving moments.


Cast
* Park Sun Young as Yoo Hye-chan
* Ryu Soo Young as Kang Sang-young
* Park Eun Hye as Shin Ji-young
* Lee Joong Moon as Kim Noon
* Shin Goo as Kang Chi-soo
* Jo Eun Ji as Yoo Hye-won (Hye-chan's younger sister)
* Kim Ji Young as Spicy rice cake grandmother
* Lee Sang Woo as Kang Bong-kyu
* Ahn Nae Sang as Suh Yoon-oh
* Lee Dae Yeon as Choi Ki-ja
* Jung Da Hye as Lee Eun-ji
* Jo Yang Ja as Park Soon-nyeo
* Kim Da Rae as Lee Sun-mi
* Lee Han Wi as Park Kam-dok
* Choi Si Won as young Kang Bong man
* Park Min Ji as young Yoo Hye-chan