Mi-jeong, Kyung-hwan, Jae-yoon, the three siblings receive a letter one day written only a simple sentence “I miss
you” from their long gone mother. After the loss of their brother Su-won from a tragic accident, the three siblings have
been living their lives with wounded hearts. They hesitate, but decide to go on a journey to meet up with their mother.
On the road from Jinju to Paju, each of their untold stories gets revealed.