Along with his young son, Ji-ho, Woo-jin misses his wife Soo-a, who died after promising to return a year later with the rainy season. Miraculously, they reunite with Soo-a when the rainy season comes around, but she has no memory of her husband and son whom she dearly loved.
Sangtae and his teenage daughter Doyeon are constantly arguing and haven't had a genuine conversation in years. When their souls are switched by a magical force for seven days, they must learn to tackle the awkward and unfamiliar situation in each other's shoes.
