Su Xiaosu, a top agent of the Imperial City Bureau, is so hungry that her hearing acts up. She mistakes the Grand Eunuch's order to "destroy the secret edict" as "destroy the peaches," sneaks into the Grand Tutor's estate to frantically eat peach pastries, and is gently embraced by the gentle Grand Tutor, Shen Yushu. Posing as an undercover agent to freeload meals, she is pressured by the Grand Eunuch Lu Wuyuan to frame Shen Yushu. At a critical moment, Shen Yushu reveals his trump card to protect her safely. The two travel far to Jiangnan to open a dessert shop, where Su Xiaosu uses supreme martial arts to knead dough and build her career, enjoying a sweet and hilarious journey all the way from a confused food-loving agent to the owner of a dessert shop, living happily with Grand Tutor Shen for the rest of their lives.