Chang Shuhong (1904-94), founding director of the Dunhuang Academy and also known as the "Guardian of Dunhuang", dedicated his life to the protection of the Mogao Grottoes and research in Dunhuang arts. His story has inspired French couple Diana and Marco Landi to explore this cultural treasure. They have a passion for sharing the rich tapestry of Dunhuang culture and Chang's story with the world, believing that these grottoes are something to be cherished for all.