Trailer
Sung Hae Sung (Yeo Jin Goo, Circle: Two Worlds Connected) is a cheery high school student. Being the eldest sibling, he wants to provide for his family instead of going to college. On the day of his 19th birthday, he gets into a car accident and passes out. He wakes up on the top of his school building. Jung Jung Won (Lee Yeon Hee, The Package) is Hae Sung's best friend. She was the one who took him to the place where he had his accident. Distraught, she has been unable to move on from the incident since. One night, Jung Won finds a young man passed out in front of her house. He is Hae Sung, her first love. She is now 31; he is 19. Can they pick up their love where they left off, or will their reunited worlds always stay separate?