The story follows an year-old school girl named Shengnan as she adventures into the night of the adults' world. The film is set in Hong Kong and opens with two girls sitting together eating bowls of sweet potato soup. The girls overhear a married man purchasing the services of a prostitute, one girl is named Shengnan Zhao Xuanyu Chen , and she begins to time him and they place bets with her friend Lily Zhengyi Liu on how long he will last in bed with her.
Suddenly a man with a megaphone comes up and informs Shengnan that her cousin Shujun Huang has invited her to dinner. While walking to meet her cousin for dinner, Shengnan becomes aware of three men behind her staring at her. Feeling uncomfortable, she lets out an awkward yell and runs off to meet her cousin.
As she enters the restaurant she sees Jianguo Wang Baohe Xue. They share an awkward stare, and Shengnan zips up her hoodie. When Shengnan gets to the table where her cousin is singing for many businessmen, Shengnan joins and begins singing awkwardly. Her cousin begins to tell the many businessmen including Jianguo Wang about her academic success and how well she is doing in school.
All the men rush to give Shengnan red envelopes with money inside, except Jianguo Wang who places his on the rotating center and spins it towards Shengnan.
Jianguo notices the head businessman; Mr. Liu's food has arrived and all the men back off from Shengnan as she zips up her hoodie all the way. Liu begins to mention her virginity and asks her about her horoscope to set her up with his son. She reveals she's had boyfriends before and has broken up with them due to them getting in the way of her academics as well as their poor sexual performance. Shocked, the businessmen look to the Taoist priest Junjie Shi sitting with them.
