Phu Xa communal house worships two Great King, namely Hien Hue and Bao Hy. An old legend says two students entered the scriptures to take the exam. When going to the Xu rapid, he died from the cataclysm. They showed their inspiration to help the people protect the country, so the villagers built a temple to commemorate them. Later, The Kings honored them as the Village Emperors, one who brought favors to the villagers, called Hien Hue, and the other who brought good things to the villagers called Bao Hy. They are worshiped with dragon thrones and tablets. The book "Than pha" also stipulates the annual sacrifices such as the Spring sacrifice on January 8, the autumn sacrifice on August 15, the summer sacrifice on June 16, the sacrifice of "Thuong dien" in July, and the sacrifice of Ky Phuc on February 10. “Than pha” also stipulates sacrifices, rituals, and taboos.

Every year to commemorate the merits of the village emperor, the people of Phu Xa village take February 10 as the traditional festival day of the village communal house to pay their respects and thank God for blessing the rain and wind, people have a peaceful and happy life.