Lee Do-Yeon
Choi Ban Do and Ma Jin Joo are both 38-years-old and a married couple. Choi Ban Do has been burdened with being the breadwinner and Ma Jin Joo is a housewife with low self-esteem. Even though they loved each other when they married, they now hate each other. They both regret marrying at such a young age. The couple travel through time and find themselves as 20-year-old university students, when they met for the first time.
Hyun-Ji studied for her 19 years before she died in an accident. She is now a ghost and has wandered around the world for several years. Hyun-Ji then meets exorcist Park Bong-Pal. Hyun-Ji and Bong-Pal listens to various stories from ghosts and sends them to the otherworld.
Do Hyun-Woo has worked as a PD for the past 10 years. He learns that his wife is having an affair and doesn't know what to do. Do Hyun-Woo, who tries to protect his marriage, talks with anonymous people through online social networks.
