What is the relationship between Shine and Zi Xuan?

The relationship between grandparents. According to the plot of Legend of the Sword and the Chivalrous Man, in Legend of the Sword and the Chivalrous Man, Zi Xuan is Linger's grandmother, so Linger and Zi Xuan are grandparents. The Legend of the Sword and the Chivalrous Man tells the story of the love and hate between Li Xiaoyao, the shopkeeper of the fishing village, Zhao Linger, the descendant of Nu Wa, and the big lady, and the story of their joint efforts to destroy and save the whole life.