Na Bong-sun (Park Bo-young) has an extremely timid personality and low self-esteem, doesn't have any close friends, and is constantly getting reprimanded at her job as an assistant chef at Sun Restaurant. She also occasionally sees ghosts, thanks to a shaman grandmother. One day, Bong-sun gets possessed by a lustful virgin ghost named Shin Soon-ae (Kim Seul-gi). To make up for the lack of romance in her short life and believing that only by losing her virginity will she be able to "resolve her grudge" and move on to the afterlife, Soon-ae is determined to seduce as many men as she can by possessing various women, and she finds the perfect vessel in Bong-sun.
Bong-sun's boss is arrogant star chef Kang Sun-woo (Jo Jung-suk), whom she secretly has a crush on. Sun-woo hasn't dated anyone since getting his heart broken by his college friend Lee So-hyung (Park Jung-ah), who's a TV producer. But when Bong-sun seemingly gets rid of her shyness and suddenly changes into a confident, dynamic woman, she finally catches his eye. Meanwhile, the mystery surrounding Soon-ae's death involves Sun-woo's brother-in-law, a kind police officer, Choi Sung-jae (Lim Ju-hwan), who may not be what he seems.
Assistant chef at Sun Restaurant. She is shy, insecure, and always has a low self-esteem. Her life changes when she is possessed by Shin Soon-ae, which makes her seem more cheerful. She studied to be a Chef under Kang Sun-woo, and then she studied abroad after winning a cooking contest.
The owner and head chef of Sun Restaurant, a professional chef specializing in pasta. He also opened a small restaurant with Korean fusion food. He has a not very good relationship with his mother but loves his sister very much.
A kind police officer. But actually, he is possessed by an evil spirit. He was the one who killed Shin Soon-ae because Soon-ae was an eyewitness when he was involved in the hit and run. Kang Eun-hee's husband.
A ghost who's still hanging around because she hasn't finished her grudge. She thought that her grudge was being a virgin ghost, but in the end, she realized that her grudge was caused by an unjust death. She was killed by Choi Sung-jae.
The younger sister of Kang Sun-woo, a former ballerina who became the victim of a hit and run that left her paralyzed. Worked as a Cashier at Sun Restaurant.
Kang Sun-woo's mother, a teaching professor. She gave birth to at the age of 19, then worked while studying. She has no female friends because she was too busy dating and studying, and her only female friend is Seobinggo.
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This series aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).