你好，马莉莉

On the eve of Macau's handover in 1999, a shy and ordinary boy named Wu Ziyan lived with his grandmother, running a food stall in the old city of Macau. Too timid to make friends, he was often bullied by his classmates. One day, he received a love letter from Shenzhen, along with a photo of a beautiful girl named Ma Lili. Soon, word spread that he had a "girlfriend from Shenzhen."