Storyline:
Ryu Sun-Jae (Byeon Woo-Seok) is a top star who has been in the spotlight since his debut. His life seems perfect, but being in the entertainment industry has completely worn him out. Meanwhile, Im Sol (Kim Hye-Yoon) loves Ryu Sun-Jae as an adoring fan. When she was little, she had an accident. Due to that, she gave up on her dream, but listening to Ryu Sun-Jae’s song on the radio gave her comfort and she became his fan since then. One day, Im Sol hears breaking news that Ryu Sun-Jae has died from shock after taking sleeping pills and cold medicine together.” She feels deep sadness over the tragic news. Miraculously, Im Sol somehow travels back in time to 15 years in the past. There, she faces Ryu Sun-Jae, who is a 19 year old high school student. She struggles to prevent his tragic future.