When Tang Xuejian was still a baby, she was picked up on the roadside by Jing Yi, the shopkeeper of Yong'an, and was then taken to Tangjiapu.At the right time, Tang Kun lost his son Tang Feng, so he adopted the baby girl as his granddaughter, Quan became Tang Feng's descendant; at the same time, he named the baby girl Xuejian.Under Tang Kun's arrangement, Tang Xuejian's granddaughter's identity was hidden from everyone, and she became the eldest lady of the Tang family.

In fact, Tang Xuejian is a woman who was recreated by Xiyao, the guardian of the sacred tree, who took the fruit of the sacred tree and used the fruit as the heart, the branches and leaves as the body, and herself as the model. Xiyao's purpose was to let this woman go to the human world to complete her dream.Dream to accompany Fei Peng in his reincarnation.

In Sword and Sword III, the heroine Tang Xuejian ends up surviving the war and settling in Yuzhou City.