Na Bong-sun, a timid assistant cook who can see ghosts, is neglected by Chef Sun-woo, her longtime crush. After taking extreme measures, a strange incident occurs involving four men with hypothermia and a mysterious woman.

Bong-sun becomes possessed by the virgin ghost Soon-ae. Her sudden boldness surprises the restaurant staff. Meanwhile, Sun-woo joins a cooking competition but is forced to rely on the unpredictable Bong-sun.

Soon-ae becomes trapped in Bong-sun's body. After running into her father, old memories resurface. Meanwhile, strange thefts occur at the restaurant, and the culprit shocks everyone.

After being kicked out of her boarding house, Bong-sun sneaks into Sun-woo's restaurant but is thrown out again. During a reshoot, Bong-sun and Sun-woo return to the studio. Amused by Sun-woo's jealous antics, Bong-sun cheers, believing she's found his weakness.

Soon-ae finally leaves Bong-sun's body. Bong-sun, now on her own, struggles to adjust and is thrown off by Sun-woo's unexpected kindness. During the next round of the competition, her shyness leads to another major mistake.

Worried her father has fainted, Soon-ae pleads for help, but Bong-sun ignores her. Sun-woo decides to teach Bong-sun how to cook properly. His intense training begins-and Bong-sun doesn't seem to mind. Later, she unintentionally goes on her first official date with Sun-woo and begins a fashion makeover.

Bong-sun enjoys her time with Sun-woo, but Soon-ae is caught by Seobinggo and faces being sent to the afterlife. After witnessing Sun-woo kiss So-hyung, a devastated Bong-sun turns to Soon-ae for help.

The restaurant staff go on a retreat. Bong-sun and Soon-ae team up to win Sun-woo's heart, but things go awry when Bong-sun ends up locked in a freezer.

Bong-sun is stunned when Sun-woo confesses his feelings for her. Soon-ae feels conflicted watching them. Bong-sun tries to lead Sun-woo to the special place from their first date, but he hesitates. Meanwhile, Sung-jae, revealing his darker side, senses something during a chat with Soon-ae's father.

Soon-ae realizes her feelings for Sun-woo, while Sung-jae begins investigating Bong-sun. Seobinggo warns Soon-ae that her emotions could turn her into an evil spirit. Bong-sun is torn when Sun-woo suggests an overnight trip.

An unexpected accident causes Sun-woo to spend the night with Bong-sun. Despite saying they should take it slow, he acts jealously toward Joon. Meanwhile, Soon-ae starts questioning the truth behind her death.

Soon-ae confesses her feelings to Bong-sun and prepares for the afterlife. Suspicion grows at the restaurant about Bong-sun and Sun-woo's relationship. Soon-ae saves Bong-sun from a serious accident and realizes Sun-woo's heart lies with her, not Bong-sun.

Bong-sun finally tells Sun-woo she was possessed, but he thinks she's lying to reject him. Soon-ae tries to retrieve her diary from Sung-jae but senses danger. Bong-sun quits, and Sun-woo feels her absence deeply.

Bong-sun and Sun-woo reaffirm their love. Through Bong-sun, Soon-ae reveals Sung-jae's connection to Eun-hee's hit-and-run accident. Together, they locate the diary and uncover crucial evidence left behind by Soon-ae.

The truth behind Soon-ae's death and Eun-hee's accident-both tied to Sung-jae-is revealed, leaving everyone in shock. Meanwhile, Bong-sun is kidnapped by Sung-jae and falls into danger.

Soon-ae once again possesses Bong-sun, who makes a bold decision. Life at Sun-woo's restaurant returns to normal, until an unexpected guest appears.