In the glitzy realm of stardom, Ryu Seon Jae shines as a top-tier celebrity, captivating the spotlight since his debut. Despite the facade of a perfect life, the demanding nature of the entertainment industry has left him utterly exhausted. Im Sol, an ardent admirer, holds an affectionate love for Ryu Seon Jae. A childhood accident derailed her dreams, yet the solace found in Ryu Seon Jae's music on the radio transformed her into an unwavering fan. The narrative takes a poignant turn when Im Sol, reeling from the breaking news of Ryu Seon Jae's tragic demise, experiences a miraculous twist of fate. Transported back 15 years into the past, she confronts Ryu Seon Jae in his 19-year-old high school self. Im Sol grapples with the formidable challenge of altering the trajectory of his future, driven by an unyielding determination to avert the impending tragedy.