This fantasy romantic comedy follows a top star actress who wakes up 25 years later as an ordinary middle-aged woman. Uhm Jung-hwa plays Im Sera, who was a nationally acclaimed actress 25 years ago. After an accident, she loses her memory of the past 25 years and wakes up as Bong Cheong-ja, an ordinary middle-aged woman in her 50s. The story begins in 2025, when top star Im Sera (played by Jang Da-ah in her younger years) is involved in an accident after an awards ceremony in 1999. After waking up 25 years later, somehow, she finds herself transformed into a plump, middle-aged woman named Bong Cheong-ja. Shocked by her lost memory and her drastic transformation, Cheong-ja struggles to regain her former self. Meanwhile, she reunites with Dokgo Cheol (Song Seung-heon), a former detective who has been demoted to the traffic division and who once supported her. She enlists him as her disguised manager as she unravels the mystery of the lost 25 years. Uhm Jung-hwa captivates viewers with her comical yet powerful portrayal of the difficult role of a woman in her 50s who is still in her 20s. She skillfully portrays the confidence of a former top star and the confusion of an ordinary middle-aged woman, generating laughter and emotion. Her harmonious dialogue with Song Seung-heon, with whom she co-stars for the first time in about 10 years, also garnered attention.