After leaving his hometown of Jilin for four years to pursue his dreams, Renjun is back home for the first time because of something unexpected. Seeing his childhood friend, Jie, he expected her to be happy, like always. But she welcomes him with a cold shoulder instead. What Renjun and Jie don’t know is that they are entering a stage of rapid growth as children, individuals and friends.  What was Renjun's lie, though?