What is "Lu Qing"? This is a temporary wedding tent, also known as "Bai Zi account". Shi Cheng of Tang Duan explained in Youyang Miscellanies: "In the Northern Dynasties, the green curtain was the house, and the inner and outer doors were called Lu Qing". In Lu Qing, newlyweds usually pay tribute.

Two people formed a perfect couple in Lu Qing, and the husband and wife will be together for one hundred years.