Introduction to Haorantang: In the fifth year of Emperor Lizong Baoyou's reign in the Song Dynasty (1257), Lu Xiufu joined Li Tingzhi, a famous general in the Southern Song Dynasty, as the official secretary of the Lianghuai system, and began his political career. He guarded the border for 13 years and served in the imperial court for 6 years. Be an honest official and relieve the worries of the people. In the turbulent autumn of the war between the Song and Yuan Dynasties, with the fearless heroic spirit of "knowing that nothing can be done but doing it", he worked hard to turn the tide, risking his own life and being loyal to the country.