"The house had been left empty and had decayed wood that had been destroyed by termites," she said, recalling the first time she saw her dream property.
Five months of reconstruction and interior decoration have turned The Hui House into a cozy and elegant restaurant known for delicious food and attentive service. Only eight groups of diners are served each day.
"We carefully keep the old building in good condition according to government requirements, frequently repairing it," Shu said.
A lover of old architecture, she started searching for a suitable ancient house to live in with her husband. In 2012, she bought two adjoining Ming Dynasty (1368-1644) houses in a precarious state of disrepair. It took her three years to rebuild and decorate them.
"The project's plan and blueprint must be approved by the government first to prevent workers destroying any of the original structure. The Hui style of a house must be maintained, including the use of black tiles, high white walls and wall tops shaped like horse heads," she said.
The restored houses, which were completed in 2016, have eight tastefully designed rooms, equipped with modern amenities such as central air conditioning and heated floors.
"Since 2016, we have lived in the houses. In March this year, we began providing accommodations for travelers," she said.
Shu spent 1.5 million yuan ($225,520) buying the two old houses, and another 2.6 million yuan rebuilding and decorating them.
"Buying old houses is costly, and reconstructing them is not only costly but also time-and energy-consuming. If you are not really fond of them, you will destroy the houses," said Yu Biao, director of the cultural heritage protection office in Yixian.
"So we must supervise buyers' credit and their economic power, no matter what kind of old houses they want to purchase."
Fascinated with Hui culture, Huang Hua, president of Beijing Hua Sheng Hang International Cultural Development Co, specializes in Ming and Qing Dynasty furniture. Since 2003, he has made a living trading nanmu, a rare wood often used by Qing royal families.
In 2013, he came across an ancestral hall in Yixian.
"It was almost collapsing and was classified as dangerous. It would have been a shame to allow it to disappear," he said.
Because the hall is listed as a cultural relic, the Yixian government only leased it for 40 years. Huang rebuilt it over a period of two years, spending 3 million yuan. Now it is a museum for Ming and Qing furniture. Huang also exhibits his company's products.
In recent years, local governments have taken a series of steps to attract private investors like Shu and Huang to renovate the old houses in Huangshan. If the plan goes well, it will prove to be a win-win, sustainable way to preserve cultural heritage.
"We have a set of meticulous rules to ensure that only capable investors can rent the houses. Ownership stays in the hands of the government," said Hu, the culture bureau chief.