Introduction to Huanyuan: At the end of the Southern Song Dynasty, Wen Shao, a senior official, was unwilling to be demoted to the Yuan Dynasty and became an official. He lived in seclusion in Xinghua Village and built a garden named "Huan" to express his loyalty to the Song Dynasty. Later, Lang Sui "reconstructed the first records of rafter use" and spent eleven years in the garden compiling twelve volumes of "Xinghua Village Records".