"Everyone in Wutong Lane said that Boss Su of the Wan Cha Lao was a piece of soft tofu. When a customer knocked over the tea cup, she bent down to mop the floor and asked with a smile: 'Is it better to change to Biluochun or continue to drink your usual drink?' But only Gu Pei knew that this 'soft tofu' had a knife hidden in its eyes.
The first time he entered the tea house was to investigate an old case. But Su Wan suddenly said while holding a teacup: "You have blue ink stains on your sleeves and bite marks on the nails on your left hand. You must have been eating steamed buns while reading the case file this morning, and you were scolded by the leader?" ' From that day on, the tea house became a temporary case handling point——
