Everyone around Xiao Yang, a 17-year-old high school boy, keeps secrets and suffers from heartbreak. His father runs a print shop and meets a girl next door, Li who is about to get married soon. Meantime, his shopkeeper mother gets close to her neighbor tailor, Shian. Yang tries to set up a date for his sister Lang who just got dumped. Also, Yang needs to cover his friend Mao who has a lovers’ quarrel to girlfriend Tian. As the only one who’s alone, Yang quietly witnesses the romances from a distance and secretly reads those love letters he helps deliver…